Finding the Third Proportional to 74,910.75 and 160,938.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,910.75 : 160,938.50 = 160,938.50 : x
2. Step 2: Convert to fraction form
   74,910.75/160,938.50 = 160,938.50/x
3. Step 3: Cross multiply
   74,910.75x = 160,938.50 × 160,938.50
4. Step 4: Simplify right side
   74,910.75x = 25,901,200,782.25
5. Step 5: Solve for x
   x = 25,901,200,782.25/74,910.75
6. Step 6: Final answer
   x = 345,760.80