Finding the Third Proportional to 66,514 and 103,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,514 : 103,059.50 = 103,059.50 : x
2. Step 2: Convert to fraction form
   66,514/103,059.50 = 103,059.50/x
3. Step 3: Cross multiply
   66,514x = 103,059.50 × 103,059.50
4. Step 4: Simplify right side
   66,514x = 10,621,260,540.25
5. Step 5: Solve for x
   x = 10,621,260,540.25/66,514
6. Step 6: Final answer
   x = 159,684.59