Finding the Third Proportional to 69,388 and 103,800

Step by Step Solution

1. Step 1: Write the proportion equation
   69,388 : 103,800 = 103,800 : x
2. Step 2: Convert to fraction form
   69,388/103,800 = 103,800/x
3. Step 3: Cross multiply
   69,388x = 103,800 × 103,800
4. Step 4: Simplify right side
   69,388x = 10,774,440,000
5. Step 5: Solve for x
   x = 10,774,440,000/69,388
6. Step 6: Final answer
   x = 155,278.15