Finding the Third Proportional to 69,146.25 and 106,789.88

Step by Step Solution

1. Step 1: Write the proportion equation
   69,146.25 : 106,789.88 = 106,789.88 : x
2. Step 2: Convert to fraction form
   69,146.25/106,789.88 = 106,789.88/x
3. Step 3: Cross multiply
   69,146.25x = 106,789.88 × 106,789.88
4. Step 4: Simplify right side
   69,146.25x = 11,404,077,402.52
5. Step 5: Solve for x
   x = 11,404,077,402.52/69,146.25
6. Step 6: Final answer
   x = 164,926.91