Finding the Third Proportional to 68,377.50 and 147,690

Step by Step Solution

1. Step 1: Write the proportion equation
   68,377.50 : 147,690 = 147,690 : x
2. Step 2: Convert to fraction form
   68,377.50/147,690 = 147,690/x
3. Step 3: Cross multiply
   68,377.50x = 147,690 × 147,690
4. Step 4: Simplify right side
   68,377.50x = 21,812,336,100
5. Step 5: Solve for x
   x = 21,812,336,100/68,377.50
6. Step 6: Final answer
   x = 318,998.74