Finding the Third Proportional to 68,899.50 and 103,348.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,899.50 : 103,348.50 = 103,348.50 : x
2. Step 2: Convert to fraction form
   68,899.50/103,348.50 = 103,348.50/x
3. Step 3: Cross multiply
   68,899.50x = 103,348.50 × 103,348.50
4. Step 4: Simplify right side
   68,899.50x = 10,680,912,452.25
5. Step 5: Solve for x
   x = 10,680,912,452.25/68,899.50
6. Step 6: Final answer
   x = 155,021.63