Finding the Third Proportional to 162,919.50 and 245,421

Step by Step Solution

1. Step 1: Write the proportion equation
   162,919.50 : 245,421 = 245,421 : x
2. Step 2: Convert to fraction form
   162,919.50/245,421 = 245,421/x
3. Step 3: Cross multiply
   162,919.50x = 245,421 × 245,421
4. Step 4: Simplify right side
   162,919.50x = 60,231,467,241
5. Step 5: Solve for x
   x = 60,231,467,241/162,919.50
6. Step 6: Final answer
   x = 369,700.79