Finding the Third Proportional to 70,907.91 and 109,789.17

Step by Step Solution

1. Step 1: Write the proportion equation
   70,907.91 : 109,789.17 = 109,789.17 : x
2. Step 2: Convert to fraction form
   70,907.91/109,789.17 = 109,789.17/x
3. Step 3: Cross multiply
   70,907.91x = 109,789.17 × 109,789.17
4. Step 4: Simplify right side
   70,907.91x = 12,053,662,261.00
5. Step 5: Solve for x
   x = 12,053,662,261.00/70,907.91
6. Step 6: Final answer
   x = 169,990.38