Finding the Third Proportional to 71,320.50 and 111,070

Step by Step Solution

1. Step 1: Write the proportion equation
   71,320.50 : 111,070 = 111,070 : x
2. Step 2: Convert to fraction form
   71,320.50/111,070 = 111,070/x
3. Step 3: Cross multiply
   71,320.50x = 111,070 × 111,070
4. Step 4: Simplify right side
   71,320.50x = 12,336,544,900
5. Step 5: Solve for x
   x = 12,336,544,900/71,320.50
6. Step 6: Final answer
   x = 172,973.34