Finding the Third Proportional to 76,558.50 and 114,918

Step by Step Solution

1. Step 1: Write the proportion equation
   76,558.50 : 114,918 = 114,918 : x
2. Step 2: Convert to fraction form
   76,558.50/114,918 = 114,918/x
3. Step 3: Cross multiply
   76,558.50x = 114,918 × 114,918
4. Step 4: Simplify right side
   76,558.50x = 13,206,146,724
5. Step 5: Solve for x
   x = 13,206,146,724/76,558.50
6. Step 6: Final answer
   x = 172,497.46