Finding the Third Proportional to 172,078.50 and 369,061

Step by Step Solution

1. Step 1: Write the proportion equation
   172,078.50 : 369,061 = 369,061 : x
2. Step 2: Convert to fraction form
   172,078.50/369,061 = 369,061/x
3. Step 3: Cross multiply
   172,078.50x = 369,061 × 369,061
4. Step 4: Simplify right side
   172,078.50x = 136,206,021,721
5. Step 5: Solve for x
   x = 136,206,021,721/172,078.50
6. Step 6: Final answer
   x = 791,534.22