Finding the Third Proportional to 56,392.50 and 122,505

Step by Step Solution

1. Step 1: Write the proportion equation
   56,392.50 : 122,505 = 122,505 : x
2. Step 2: Convert to fraction form
   56,392.50/122,505 = 122,505/x
3. Step 3: Cross multiply
   56,392.50x = 122,505 × 122,505
4. Step 4: Simplify right side
   56,392.50x = 15,007,475,025
5. Step 5: Solve for x
   x = 15,007,475,025/56,392.50
6. Step 6: Final answer
   x = 266,125.37