Finding the Third Proportional to 69,417.50 and 103,829.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,417.50 : 103,829.25 = 103,829.25 : x
2. Step 2: Convert to fraction form
   69,417.50/103,829.25 = 103,829.25/x
3. Step 3: Cross multiply
   69,417.50x = 103,829.25 × 103,829.25
4. Step 4: Simplify right side
   69,417.50x = 10,780,513,155.56
5. Step 5: Solve for x
   x = 10,780,513,155.56/69,417.50
6. Step 6: Final answer
   x = 155,299.65