Finding the Third Proportional to 43,668.50 and 61,803.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,668.50 : 61,803.50 = 61,803.50 : x
2. Step 2: Convert to fraction form
   43,668.50/61,803.50 = 61,803.50/x
3. Step 3: Cross multiply
   43,668.50x = 61,803.50 × 61,803.50
4. Step 4: Simplify right side
   43,668.50x = 3,819,672,612.25
5. Step 5: Solve for x
   x = 3,819,672,612.25/43,668.50
6. Step 6: Final answer
   x = 87,469.75