Finding the Third Proportional to 103,845 and 243,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,845 : 243,142.50 = 243,142.50 : x
2. Step 2: Convert to fraction form
   103,845/243,142.50 = 243,142.50/x
3. Step 3: Cross multiply
   103,845x = 243,142.50 × 243,142.50
4. Step 4: Simplify right side
   103,845x = 59,118,275,306.25
5. Step 5: Solve for x
   x = 59,118,275,306.25/103,845
6. Step 6: Final answer
   x = 569,293.42