Finding the Third Proportional to 69,898.50 and 108,432

Step by Step Solution

1. Step 1: Write the proportion equation
   69,898.50 : 108,432 = 108,432 : x
2. Step 2: Convert to fraction form
   69,898.50/108,432 = 108,432/x
3. Step 3: Cross multiply
   69,898.50x = 108,432 × 108,432
4. Step 4: Simplify right side
   69,898.50x = 11,757,498,624
5. Step 5: Solve for x
   x = 11,757,498,624/69,898.50
6. Step 6: Final answer
   x = 168,208.17