Finding the Third Proportional to 38,257.31 and 81,070.88

Step by Step Solution

1. Step 1: Write the proportion equation
   38,257.31 : 81,070.88 = 81,070.88 : x
2. Step 2: Convert to fraction form
   38,257.31/81,070.88 = 81,070.88/x
3. Step 3: Cross multiply
   38,257.31x = 81,070.88 × 81,070.88
4. Step 4: Simplify right side
   38,257.31x = 6,572,486,773.27
5. Step 5: Solve for x
   x = 6,572,486,773.27/38,257.31
6. Step 6: Final answer
   x = 171,796.88