Finding the Third Proportional to 72,220 and 161,036.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,220 : 161,036.50 = 161,036.50 : x
2. Step 2: Convert to fraction form
   72,220/161,036.50 = 161,036.50/x
3. Step 3: Cross multiply
   72,220x = 161,036.50 × 161,036.50
4. Step 4: Simplify right side
   72,220x = 25,932,754,332.25
5. Step 5: Solve for x
   x = 25,932,754,332.25/72,220
6. Step 6: Final answer
   x = 359,079.95