Finding the Third Proportional to 69,391.69 and 103,897.69

Step by Step Solution

1. Step 1: Write the proportion equation
   69,391.69 : 103,897.69 = 103,897.69 : x
2. Step 2: Convert to fraction form
   69,391.69/103,897.69 = 103,897.69/x
3. Step 3: Cross multiply
   69,391.69x = 103,897.69 × 103,897.69
4. Step 4: Simplify right side
   69,391.69x = 10,794,729,467.85
5. Step 5: Solve for x
   x = 10,794,729,467.85/69,391.69
6. Step 6: Final answer
   x = 155,562.29