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Finding the Third Proportional to 311,564.81 and 677,804.63

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Solution

The third proportional to 311,564.81 and 677,804.63 is: 1,474,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,564.81 : 677,804.63 = 677,804.63 : x
  2. Step 2: Convert to fraction form
    311,564.81/677,804.63 = 677,804.63/x
  3. Step 3: Cross multiply
    311,564.81x = 677,804.63 × 677,804.63
  4. Step 4: Simplify right side
    311,564.81x = 459,419,109,671.39
  5. Step 5: Solve for x
    x = 459,419,109,671.39/311,564.81
  6. Step 6: Final answer
    x = 1,474,553.90

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