Finding the Third Proportional to 68,123.25 and 149,368.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,123.25 : 149,368.50 = 149,368.50 : x
2. Step 2: Convert to fraction form
   68,123.25/149,368.50 = 149,368.50/x
3. Step 3: Cross multiply
   68,123.25x = 149,368.50 × 149,368.50
4. Step 4: Simplify right side
   68,123.25x = 22,310,948,792.25
5. Step 5: Solve for x
   x = 22,310,948,792.25/68,123.25
6. Step 6: Final answer
   x = 327,508.58