Finding the Third Proportional to 172,148 and 371,488

Step by Step Solution

1. Step 1: Write the proportion equation
   172,148 : 371,488 = 371,488 : x
2. Step 2: Convert to fraction form
   172,148/371,488 = 371,488/x
3. Step 3: Cross multiply
   172,148x = 371,488 × 371,488
4. Step 4: Simplify right side
   172,148x = 138,003,334,144
5. Step 5: Solve for x
   x = 138,003,334,144/172,148
6. Step 6: Final answer
   x = 801,655.17