Finding the Third Proportional to 74,670.50 and 161,216

Step by Step Solution

1. Step 1: Write the proportion equation
   74,670.50 : 161,216 = 161,216 : x
2. Step 2: Convert to fraction form
   74,670.50/161,216 = 161,216/x
3. Step 3: Cross multiply
   74,670.50x = 161,216 × 161,216
4. Step 4: Simplify right side
   74,670.50x = 25,990,598,656
5. Step 5: Solve for x
   x = 25,990,598,656/74,670.50
6. Step 6: Final answer
   x = 348,070.51