Finding the Third Proportional to 69,120 and 99,906

Step by Step Solution

1. Step 1: Write the proportion equation
   69,120 : 99,906 = 99,906 : x
2. Step 2: Convert to fraction form
   69,120/99,906 = 99,906/x
3. Step 3: Cross multiply
   69,120x = 99,906 × 99,906
4. Step 4: Simplify right side
   69,120x = 9,981,208,836
5. Step 5: Solve for x
   x = 9,981,208,836/69,120
6. Step 6: Final answer
   x = 144,404.06