Finding the Third Proportional to 109,389 and 240,161.25

Step by Step Solution

1. Step 1: Write the proportion equation
   109,389 : 240,161.25 = 240,161.25 : x
2. Step 2: Convert to fraction form
   109,389/240,161.25 = 240,161.25/x
3. Step 3: Cross multiply
   109,389x = 240,161.25 × 240,161.25
4. Step 4: Simplify right side
   109,389x = 57,677,426,001.56
5. Step 5: Solve for x
   x = 57,677,426,001.56/109,389
6. Step 6: Final answer
   x = 527,268.98