Finding the Third Proportional to 202,215 and 301,375.50

Step by Step Solution

1. Step 1: Write the proportion equation
   202,215 : 301,375.50 = 301,375.50 : x
2. Step 2: Convert to fraction form
   202,215/301,375.50 = 301,375.50/x
3. Step 3: Cross multiply
   202,215x = 301,375.50 × 301,375.50
4. Step 4: Simplify right side
   202,215x = 90,827,192,000.25
5. Step 5: Solve for x
   x = 90,827,192,000.25/202,215
6. Step 6: Final answer
   x = 449,161.50