Finding the Third Proportional to 162,777 and 252,012

Step by Step Solution

1. Step 1: Write the proportion equation
   162,777 : 252,012 = 252,012 : x
2. Step 2: Convert to fraction form
   162,777/252,012 = 252,012/x
3. Step 3: Cross multiply
   162,777x = 252,012 × 252,012
4. Step 4: Simplify right side
   162,777x = 63,510,048,144
5. Step 5: Solve for x
   x = 63,510,048,144/162,777
6. Step 6: Final answer
   x = 390,165.98