Finding the Third Proportional to 179,131 and 391,010

Step by Step Solution

1. Step 1: Write the proportion equation
   179,131 : 391,010 = 391,010 : x
2. Step 2: Convert to fraction form
   179,131/391,010 = 391,010/x
3. Step 3: Cross multiply
   179,131x = 391,010 × 391,010
4. Step 4: Simplify right side
   179,131x = 152,888,820,100
5. Step 5: Solve for x
   x = 152,888,820,100/179,131
6. Step 6: Final answer
   x = 853,502.86