Finding the Third Proportional to 379,311 and 569,974.50

Step by Step Solution

1. Step 1: Write the proportion equation
   379,311 : 569,974.50 = 569,974.50 : x
2. Step 2: Convert to fraction form
   379,311/569,974.50 = 569,974.50/x
3. Step 3: Cross multiply
   379,311x = 569,974.50 × 569,974.50
4. Step 4: Simplify right side
   379,311x = 324,870,930,650.25
5. Step 5: Solve for x
   x = 324,870,930,650.25/379,311
6. Step 6: Final answer
   x = 856,476.43