Finding the Third Proportional to 171,384 and 243,588

Step by Step Solution

1. Step 1: Write the proportion equation
   171,384 : 243,588 = 243,588 : x
2. Step 2: Convert to fraction form
   171,384/243,588 = 243,588/x
3. Step 3: Cross multiply
   171,384x = 243,588 × 243,588
4. Step 4: Simplify right side
   171,384x = 59,335,113,744
5. Step 5: Solve for x
   x = 59,335,113,744/171,384
6. Step 6: Final answer
   x = 346,211.51