Finding the Third Proportional to 71,356 and 111,121

Step by Step Solution

1. Step 1: Write the proportion equation
   71,356 : 111,121 = 111,121 : x
2. Step 2: Convert to fraction form
   71,356/111,121 = 111,121/x
3. Step 3: Cross multiply
   71,356x = 111,121 × 111,121
4. Step 4: Simplify right side
   71,356x = 12,347,876,641
5. Step 5: Solve for x
   x = 12,347,876,641/71,356
6. Step 6: Final answer
   x = 173,046.09