Finding the Third Proportional to 272,196 and 408,566.25

Step by Step Solution

1. Step 1: Write the proportion equation
   272,196 : 408,566.25 = 408,566.25 : x
2. Step 2: Convert to fraction form
   272,196/408,566.25 = 408,566.25/x
3. Step 3: Cross multiply
   272,196x = 408,566.25 × 408,566.25
4. Step 4: Simplify right side
   272,196x = 166,926,380,639.06
5. Step 5: Solve for x
   x = 166,926,380,639.06/272,196
6. Step 6: Final answer
   x = 613,258.02