Finding the Third Proportional to 59,228.40 and 91,042.42

Step by Step Solution

1. Step 1: Write the proportion equation
   59,228.40 : 91,042.42 = 91,042.42 : x
2. Step 2: Convert to fraction form
   59,228.40/91,042.42 = 91,042.42/x
3. Step 3: Cross multiply
   59,228.40x = 91,042.42 × 91,042.42
4. Step 4: Simplify right side
   59,228.40x = 8,288,721,869.60
5. Step 5: Solve for x
   x = 8,288,721,869.60/59,228.40
6. Step 6: Final answer
   x = 139,945.05