Finding the Third Proportional to 172,019 and 377,248

Step by Step Solution

1. Step 1: Write the proportion equation
   172,019 : 377,248 = 377,248 : x
2. Step 2: Convert to fraction form
   172,019/377,248 = 377,248/x
3. Step 3: Cross multiply
   172,019x = 377,248 × 377,248
4. Step 4: Simplify right side
   172,019x = 142,316,053,504
5. Step 5: Solve for x
   x = 142,316,053,504/172,019
6. Step 6: Final answer
   x = 827,327.52