Finding the Third Proportional to 68,089.50 and 99,945

Step by Step Solution

1. Step 1: Write the proportion equation
   68,089.50 : 99,945 = 99,945 : x
2. Step 2: Convert to fraction form
   68,089.50/99,945 = 99,945/x
3. Step 3: Cross multiply
   68,089.50x = 99,945 × 99,945
4. Step 4: Simplify right side
   68,089.50x = 9,989,003,025
5. Step 5: Solve for x
   x = 9,989,003,025/68,089.50
6. Step 6: Final answer
   x = 146,704.01