Finding the Third Proportional to 464,737.50 and 688,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   464,737.50 : 688,459.50 = 688,459.50 : x
2. Step 2: Convert to fraction form
   464,737.50/688,459.50 = 688,459.50/x
3. Step 3: Cross multiply
   464,737.50x = 688,459.50 × 688,459.50
4. Step 4: Simplify right side
   464,737.50x = 473,976,483,140.25
5. Step 5: Solve for x
   x = 473,976,483,140.25/464,737.50
6. Step 6: Final answer
   x = 1,019,880.00