Finding the Third Proportional to 179,156 and 391,064

Step by Step Solution

1. Step 1: Write the proportion equation
   179,156 : 391,064 = 391,064 : x
2. Step 2: Convert to fraction form
   179,156/391,064 = 391,064/x
3. Step 3: Cross multiply
   179,156x = 391,064 × 391,064
4. Step 4: Simplify right side
   179,156x = 152,931,052,096
5. Step 5: Solve for x
   x = 152,931,052,096/179,156
6. Step 6: Final answer
   x = 853,619.48