Finding the Third Proportional to 365,552 and 545,284.50

Step by Step Solution

1. Step 1: Write the proportion equation
   365,552 : 545,284.50 = 545,284.50 : x
2. Step 2: Convert to fraction form
   365,552/545,284.50 = 545,284.50/x
3. Step 3: Cross multiply
   365,552x = 545,284.50 × 545,284.50
4. Step 4: Simplify right side
   365,552x = 297,335,185,940.25
5. Step 5: Solve for x
   x = 297,335,185,940.25/365,552
6. Step 6: Final answer
   x = 813,386.84