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Finding the Third Proportional to 311,703.75 and 681,727.50

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Solution

The third proportional to 311,703.75 and 681,727.50 is: 1,491,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,703.75 : 681,727.50 = 681,727.50 : x
  2. Step 2: Convert to fraction form
    311,703.75/681,727.50 = 681,727.50/x
  3. Step 3: Cross multiply
    311,703.75x = 681,727.50 × 681,727.50
  4. Step 4: Simplify right side
    311,703.75x = 464,752,384,256.25
  5. Step 5: Solve for x
    x = 464,752,384,256.25/311,703.75
  6. Step 6: Final answer
    x = 1,491,006.71

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