Finding the Third Proportional to 162,810 and 243,904.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,810 : 243,904.50 = 243,904.50 : x
2. Step 2: Convert to fraction form
   162,810/243,904.50 = 243,904.50/x
3. Step 3: Cross multiply
   162,810x = 243,904.50 × 243,904.50
4. Step 4: Simplify right side
   162,810x = 59,489,405,120.25
5. Step 5: Solve for x
   x = 59,489,405,120.25/162,810
6. Step 6: Final answer
   x = 365,391.59