Finding the Third Proportional to 69,931.50 and 108,480

Step by Step Solution

1. Step 1: Write the proportion equation
   69,931.50 : 108,480 = 108,480 : x
2. Step 2: Convert to fraction form
   69,931.50/108,480 = 108,480/x
3. Step 3: Cross multiply
   69,931.50x = 108,480 × 108,480
4. Step 4: Simplify right side
   69,931.50x = 11,767,910,400
5. Step 5: Solve for x
   x = 11,767,910,400/69,931.50
6. Step 6: Final answer
   x = 168,277.68