Finding the Third Proportional to 175,284 and 391,146.75

Step by Step Solution

1. Step 1: Write the proportion equation
   175,284 : 391,146.75 = 391,146.75 : x
2. Step 2: Convert to fraction form
   175,284/391,146.75 = 391,146.75/x
3. Step 3: Cross multiply
   175,284x = 391,146.75 × 391,146.75
4. Step 4: Simplify right side
   175,284x = 152,995,780,035.56
5. Step 5: Solve for x
   x = 152,995,780,035.56/175,284
6. Step 6: Final answer
   x = 872,845.10