Finding the Third Proportional to 166,578 and 243,646.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,578 : 243,646.50 = 243,646.50 : x
2. Step 2: Convert to fraction form
   166,578/243,646.50 = 243,646.50/x
3. Step 3: Cross multiply
   166,578x = 243,646.50 × 243,646.50
4. Step 4: Simplify right side
   166,578x = 59,363,616,962.25
5. Step 5: Solve for x
   x = 59,363,616,962.25/166,578
6. Step 6: Final answer
   x = 356,371.29