Finding the Third Proportional to 162,758 and 243,978

Step by Step Solution

1. Step 1: Write the proportion equation
   162,758 : 243,978 = 243,978 : x
2. Step 2: Convert to fraction form
   162,758/243,978 = 243,978/x
3. Step 3: Cross multiply
   162,758x = 243,978 × 243,978
4. Step 4: Simplify right side
   162,758x = 59,525,264,484
5. Step 5: Solve for x
   x = 59,525,264,484/162,758
6. Step 6: Final answer
   x = 365,728.66