Finding the Third Proportional to 68,244 and 148,140

Step by Step Solution

1. Step 1: Write the proportion equation
   68,244 : 148,140 = 148,140 : x
2. Step 2: Convert to fraction form
   68,244/148,140 = 148,140/x
3. Step 3: Cross multiply
   68,244x = 148,140 × 148,140
4. Step 4: Simplify right side
   68,244x = 21,945,459,600
5. Step 5: Solve for x
   x = 21,945,459,600/68,244
6. Step 6: Final answer
   x = 321,573.47