Finding the Third Proportional to 619,484 and 872,382.50

Step by Step Solution

1. Step 1: Write the proportion equation
   619,484 : 872,382.50 = 872,382.50 : x
2. Step 2: Convert to fraction form
   619,484/872,382.50 = 872,382.50/x
3. Step 3: Cross multiply
   619,484x = 872,382.50 × 872,382.50
4. Step 4: Simplify right side
   619,484x = 761,051,226,306.25
5. Step 5: Solve for x
   x = 761,051,226,306.25/619,484
6. Step 6: Final answer
   x = 1,228,524.43