Finding the Third Proportional to 47,989 and 71,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   47,989 : 71,992.50 = 71,992.50 : x
2. Step 2: Convert to fraction form
   47,989/71,992.50 = 71,992.50/x
3. Step 3: Cross multiply
   47,989x = 71,992.50 × 71,992.50
4. Step 4: Simplify right side
   47,989x = 5,182,920,056.25
5. Step 5: Solve for x
   x = 5,182,920,056.25/47,989
6. Step 6: Final answer
   x = 108,002.25