Finding the Third Proportional to 314,280 and 486,535.50

Step by Step Solution

1. Step 1: Write the proportion equation
   314,280 : 486,535.50 = 486,535.50 : x
2. Step 2: Convert to fraction form
   314,280/486,535.50 = 486,535.50/x
3. Step 3: Cross multiply
   314,280x = 486,535.50 × 486,535.50
4. Step 4: Simplify right side
   314,280x = 236,716,792,760.25
5. Step 5: Solve for x
   x = 236,716,792,760.25/314,280
6. Step 6: Final answer
   x = 753,203.49