Finding the Third Proportional to 489,535 and 748,372.50

Step by Step Solution

1. Step 1: Write the proportion equation
   489,535 : 748,372.50 = 748,372.50 : x
2. Step 2: Convert to fraction form
   489,535/748,372.50 = 748,372.50/x
3. Step 3: Cross multiply
   489,535x = 748,372.50 × 748,372.50
4. Step 4: Simplify right side
   489,535x = 560,061,398,756.25
5. Step 5: Solve for x
   x = 560,061,398,756.25/489,535
6. Step 6: Final answer
   x = 1,144,068.14