Finding the Third Proportional to 550,497 and 850,792.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,497 : 850,792.50 = 850,792.50 : x
2. Step 2: Convert to fraction form
   550,497/850,792.50 = 850,792.50/x
3. Step 3: Cross multiply
   550,497x = 850,792.50 × 850,792.50
4. Step 4: Simplify right side
   550,497x = 723,847,878,056.25
5. Step 5: Solve for x
   x = 723,847,878,056.25/550,497
6. Step 6: Final answer
   x = 1,314,898.86