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Finding the Third Proportional to 429,216.19 and 664,299.84

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Solution

The third proportional to 429,216.19 and 664,299.84 is: 1,028,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,216.19 : 664,299.84 = 664,299.84 : x
  2. Step 2: Convert to fraction form
    429,216.19/664,299.84 = 664,299.84/x
  3. Step 3: Cross multiply
    429,216.19x = 664,299.84 × 664,299.84
  4. Step 4: Simplify right side
    429,216.19x = 441,294,282,406.27
  5. Step 5: Solve for x
    x = 441,294,282,406.27/429,216.19
  6. Step 6: Final answer
    x = 1,028,139.89

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