Finding the Third Proportional to 161,182 and 379,139

Step by Step Solution

1. Step 1: Write the proportion equation
   161,182 : 379,139 = 379,139 : x
2. Step 2: Convert to fraction form
   161,182/379,139 = 379,139/x
3. Step 3: Cross multiply
   161,182x = 379,139 × 379,139
4. Step 4: Simplify right side
   161,182x = 143,746,381,321
5. Step 5: Solve for x
   x = 143,746,381,321/161,182
6. Step 6: Final answer
   x = 891,826.51