Finding the Third Proportional to 69,280 and 104,388

Step by Step Solution

1. Step 1: Write the proportion equation
   69,280 : 104,388 = 104,388 : x
2. Step 2: Convert to fraction form
   69,280/104,388 = 104,388/x
3. Step 3: Cross multiply
   69,280x = 104,388 × 104,388
4. Step 4: Simplify right side
   69,280x = 10,896,854,544
5. Step 5: Solve for x
   x = 10,896,854,544/69,280
6. Step 6: Final answer
   x = 157,287.16