Finding the Third Proportional to 83,671.88 and 117,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,671.88 : 117,031.50 = 117,031.50 : x
2. Step 2: Convert to fraction form
   83,671.88/117,031.50 = 117,031.50/x
3. Step 3: Cross multiply
   83,671.88x = 117,031.50 × 117,031.50
4. Step 4: Simplify right side
   83,671.88x = 13,696,371,992.25
5. Step 5: Solve for x
   x = 13,696,371,992.25/83,671.88
6. Step 6: Final answer
   x = 163,691.47