Finding the Third Proportional to 40,411.31 and 87,817.69

Step by Step Solution

1. Step 1: Write the proportion equation
   40,411.31 : 87,817.69 = 87,817.69 : x
2. Step 2: Convert to fraction form
   40,411.31/87,817.69 = 87,817.69/x
3. Step 3: Cross multiply
   40,411.31x = 87,817.69 × 87,817.69
4. Step 4: Simplify right side
   40,411.31x = 7,711,946,237.85
5. Step 5: Solve for x
   x = 7,711,946,237.85/40,411.31
6. Step 6: Final answer
   x = 190,836.32