Finding the Third Proportional to 71,217 and 110,713.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,217 : 110,713.50 = 110,713.50 : x
2. Step 2: Convert to fraction form
   71,217/110,713.50 = 110,713.50/x
3. Step 3: Cross multiply
   71,217x = 110,713.50 × 110,713.50
4. Step 4: Simplify right side
   71,217x = 12,257,479,082.25
5. Step 5: Solve for x
   x = 12,257,479,082.25/71,217
6. Step 6: Final answer
   x = 172,114.51