Finding the Third Proportional to 40,870 and 63,145

Step by Step Solution

1. Step 1: Write the proportion equation
   40,870 : 63,145 = 63,145 : x
2. Step 2: Convert to fraction form
   40,870/63,145 = 63,145/x
3. Step 3: Cross multiply
   40,870x = 63,145 × 63,145
4. Step 4: Simplify right side
   40,870x = 3,987,291,025
5. Step 5: Solve for x
   x = 3,987,291,025/40,870
6. Step 6: Final answer
   x = 97,560.34