Finding the Third Proportional to 43,031.81 and 71,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,031.81 : 71,113.50 = 71,113.50 : x
2. Step 2: Convert to fraction form
   43,031.81/71,113.50 = 71,113.50/x
3. Step 3: Cross multiply
   43,031.81x = 71,113.50 × 71,113.50
4. Step 4: Simplify right side
   43,031.81x = 5,057,129,882.25
5. Step 5: Solve for x
   x = 5,057,129,882.25/43,031.81
6. Step 6: Final answer
   x = 117,520.73