Finding the Third Proportional to 56,517 and 88,189.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,517 : 88,189.50 = 88,189.50 : x
2. Step 2: Convert to fraction form
   56,517/88,189.50 = 88,189.50/x
3. Step 3: Cross multiply
   56,517x = 88,189.50 × 88,189.50
4. Step 4: Simplify right side
   56,517x = 7,777,387,910.25
5. Step 5: Solve for x
   x = 7,777,387,910.25/56,517
6. Step 6: Final answer
   x = 137,611.48