Finding the Third Proportional to 68,913 and 103,909.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,913 : 103,909.50 = 103,909.50 : x
2. Step 2: Convert to fraction form
   68,913/103,909.50 = 103,909.50/x
3. Step 3: Cross multiply
   68,913x = 103,909.50 × 103,909.50
4. Step 4: Simplify right side
   68,913x = 10,797,184,190.25
5. Step 5: Solve for x
   x = 10,797,184,190.25/68,913
6. Step 6: Final answer
   x = 156,678.48