Finding the Third Proportional to 166,578 and 243,619.88

Step by Step Solution

1. Step 1: Write the proportion equation
   166,578 : 243,619.88 = 243,619.88 : x
2. Step 2: Convert to fraction form
   166,578/243,619.88 = 243,619.88/x
3. Step 3: Cross multiply
   166,578x = 243,619.88 × 243,619.88
4. Step 4: Simplify right side
   166,578x = 59,350,643,495.02
5. Step 5: Solve for x
   x = 59,350,643,495.02/166,578
6. Step 6: Final answer
   x = 356,293.41