Finding the Third Proportional to 34,139.60 and 74,502.28

Step by Step Solution

1. Step 1: Write the proportion equation
   34,139.60 : 74,502.28 = 74,502.28 : x
2. Step 2: Convert to fraction form
   34,139.60/74,502.28 = 74,502.28/x
3. Step 3: Cross multiply
   34,139.60x = 74,502.28 × 74,502.28
4. Step 4: Simplify right side
   34,139.60x = 5,550,589,911.45
5. Step 5: Solve for x
   x = 5,550,589,911.45/34,139.60
6. Step 6: Final answer
   x = 162,585.08