Finding the Third Proportional to 149,715 and 220,196.25

Step by Step Solution

1. Step 1: Write the proportion equation
   149,715 : 220,196.25 = 220,196.25 : x
2. Step 2: Convert to fraction form
   149,715/220,196.25 = 220,196.25/x
3. Step 3: Cross multiply
   149,715x = 220,196.25 × 220,196.25
4. Step 4: Simplify right side
   149,715x = 48,486,388,514.06
5. Step 5: Solve for x
   x = 48,486,388,514.06/149,715
6. Step 6: Final answer
   x = 323,857.92