Finding the Third Proportional to 172,155 and 371,502

Step by Step Solution

1. Step 1: Write the proportion equation
   172,155 : 371,502 = 371,502 : x
2. Step 2: Convert to fraction form
   172,155/371,502 = 371,502/x
3. Step 3: Cross multiply
   172,155x = 371,502 × 371,502
4. Step 4: Simplify right side
   172,155x = 138,013,736,004
5. Step 5: Solve for x
   x = 138,013,736,004/172,155
6. Step 6: Final answer
   x = 801,682.99