Finding the Third Proportional to 72,407.50 and 159,549.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,407.50 : 159,549.50 = 159,549.50 : x
2. Step 2: Convert to fraction form
   72,407.50/159,549.50 = 159,549.50/x
3. Step 3: Cross multiply
   72,407.50x = 159,549.50 × 159,549.50
4. Step 4: Simplify right side
   72,407.50x = 25,456,042,950.25
5. Step 5: Solve for x
   x = 25,456,042,950.25/72,407.50
6. Step 6: Final answer
   x = 351,566.38