Finding the Third Proportional to 69,115.50 and 101,405.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,115.50 : 101,405.25 = 101,405.25 : x
2. Step 2: Convert to fraction form
   69,115.50/101,405.25 = 101,405.25/x
3. Step 3: Cross multiply
   69,115.50x = 101,405.25 × 101,405.25
4. Step 4: Simplify right side
   69,115.50x = 10,283,024,727.56
5. Step 5: Solve for x
   x = 10,283,024,727.56/69,115.50
6. Step 6: Final answer
   x = 148,780.30