Finding the Third Proportional to 361,002.75 and 561,247.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,002.75 : 561,247.50 = 561,247.50 : x
2. Step 2: Convert to fraction form
   361,002.75/561,247.50 = 561,247.50/x
3. Step 3: Cross multiply
   361,002.75x = 561,247.50 × 561,247.50
4. Step 4: Simplify right side
   361,002.75x = 314,998,756,256.25
5. Step 5: Solve for x
   x = 314,998,756,256.25/361,002.75
6. Step 6: Final answer
   x = 872,566.09