Finding the Third Proportional to 40,140.56 and 61,258.78

Step by Step Solution

1. Step 1: Write the proportion equation
   40,140.56 : 61,258.78 = 61,258.78 : x
2. Step 2: Convert to fraction form
   40,140.56/61,258.78 = 61,258.78/x
3. Step 3: Cross multiply
   40,140.56x = 61,258.78 × 61,258.78
4. Step 4: Simplify right side
   40,140.56x = 3,752,638,280.24
5. Step 5: Solve for x
   x = 3,752,638,280.24/40,140.56
6. Step 6: Final answer
   x = 93,487.44