Finding the Third Proportional to 66,648 and 103,158

Step by Step Solution

1. Step 1: Write the proportion equation
   66,648 : 103,158 = 103,158 : x
2. Step 2: Convert to fraction form
   66,648/103,158 = 103,158/x
3. Step 3: Cross multiply
   66,648x = 103,158 × 103,158
4. Step 4: Simplify right side
   66,648x = 10,641,572,964
5. Step 5: Solve for x
   x = 10,641,572,964/66,648
6. Step 6: Final answer
   x = 159,668.30