Finding the Third Proportional to 74,347.50 and 154,849.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,347.50 : 154,849.50 = 154,849.50 : x
2. Step 2: Convert to fraction form
   74,347.50/154,849.50 = 154,849.50/x
3. Step 3: Cross multiply
   74,347.50x = 154,849.50 × 154,849.50
4. Step 4: Simplify right side
   74,347.50x = 23,978,367,650.25
5. Step 5: Solve for x
   x = 23,978,367,650.25/74,347.50
6. Step 6: Final answer
   x = 322,517.47