Finding the Third Proportional to 77,247.50 and 103,462.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,247.50 : 103,462.50 = 103,462.50 : x
2. Step 2: Convert to fraction form
   77,247.50/103,462.50 = 103,462.50/x
3. Step 3: Cross multiply
   77,247.50x = 103,462.50 × 103,462.50
4. Step 4: Simplify right side
   77,247.50x = 10,704,488,906.25
5. Step 5: Solve for x
   x = 10,704,488,906.25/77,247.50
6. Step 6: Final answer
   x = 138,573.92