Finding the Third Proportional to 47,391 and 71,206.50

Step by Step Solution

1. Step 1: Write the proportion equation
   47,391 : 71,206.50 = 71,206.50 : x
2. Step 2: Convert to fraction form
   47,391/71,206.50 = 71,206.50/x
3. Step 3: Cross multiply
   47,391x = 71,206.50 × 71,206.50
4. Step 4: Simplify right side
   47,391x = 5,070,365,642.25
5. Step 5: Solve for x
   x = 5,070,365,642.25/47,391
6. Step 6: Final answer
   x = 106,990.05