Finding the Third Proportional to 458,552 and 611,566.50

Step by Step Solution

1. Step 1: Write the proportion equation
   458,552 : 611,566.50 = 611,566.50 : x
2. Step 2: Convert to fraction form
   458,552/611,566.50 = 611,566.50/x
3. Step 3: Cross multiply
   458,552x = 611,566.50 × 611,566.50
4. Step 4: Simplify right side
   458,552x = 374,013,583,922.25
5. Step 5: Solve for x
   x = 374,013,583,922.25/458,552
6. Step 6: Final answer
   x = 815,640.50