Finding the Third Proportional to 69,932.25 and 105,478.88

Step by Step Solution

1. Step 1: Write the proportion equation
   69,932.25 : 105,478.88 = 105,478.88 : x
2. Step 2: Convert to fraction form
   69,932.25/105,478.88 = 105,478.88/x
3. Step 3: Cross multiply
   69,932.25x = 105,478.88 × 105,478.88
4. Step 4: Simplify right side
   69,932.25x = 11,125,793,071.27
5. Step 5: Solve for x
   x = 11,125,793,071.27/69,932.25
6. Step 6: Final answer
   x = 159,093.88