Finding the Third Proportional to 61,201.50 and 91,445.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,201.50 : 91,445.50 = 91,445.50 : x
2. Step 2: Convert to fraction form
   61,201.50/91,445.50 = 91,445.50/x
3. Step 3: Cross multiply
   61,201.50x = 91,445.50 × 91,445.50
4. Step 4: Simplify right side
   61,201.50x = 8,362,279,470.25
5. Step 5: Solve for x
   x = 8,362,279,470.25/61,201.50
6. Step 6: Final answer
   x = 136,635.20