Finding the Third Proportional to 109,243.69 and 243,906.19

Step by Step Solution

1. Step 1: Write the proportion equation
   109,243.69 : 243,906.19 = 243,906.19 : x
2. Step 2: Convert to fraction form
   109,243.69/243,906.19 = 243,906.19/x
3. Step 3: Cross multiply
   109,243.69x = 243,906.19 × 243,906.19
4. Step 4: Simplify right side
   109,243.69x = 59,490,228,300.79
5. Step 5: Solve for x
   x = 59,490,228,300.79/109,243.69
6. Step 6: Final answer
   x = 544,564.45