Finding the Third Proportional to 69,079.50 and 103,619.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,079.50 : 103,619.25 = 103,619.25 : x
2. Step 2: Convert to fraction form
   69,079.50/103,619.25 = 103,619.25/x
3. Step 3: Cross multiply
   69,079.50x = 103,619.25 × 103,619.25
4. Step 4: Simplify right side
   69,079.50x = 10,736,948,970.56
5. Step 5: Solve for x
   x = 10,736,948,970.56/69,079.50
6. Step 6: Final answer
   x = 155,428.88