Finding the Third Proportional to 485,583 and 761,737.50

Step by Step Solution

1. Step 1: Write the proportion equation
   485,583 : 761,737.50 = 761,737.50 : x
2. Step 2: Convert to fraction form
   485,583/761,737.50 = 761,737.50/x
3. Step 3: Cross multiply
   485,583x = 761,737.50 × 761,737.50
4. Step 4: Simplify right side
   485,583x = 580,244,018,906.25
5. Step 5: Solve for x
   x = 580,244,018,906.25/485,583
6. Step 6: Final answer
   x = 1,194,943.02