Finding the Third Proportional to 68,400 and 103,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,400 : 103,513.50 = 103,513.50 : x
2. Step 2: Convert to fraction form
   68,400/103,513.50 = 103,513.50/x
3. Step 3: Cross multiply
   68,400x = 103,513.50 × 103,513.50
4. Step 4: Simplify right side
   68,400x = 10,715,044,682.25
5. Step 5: Solve for x
   x = 10,715,044,682.25/68,400
6. Step 6: Final answer
   x = 156,652.70