Finding the Third Proportional to 1,267,917 and 1,856,358

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267,917 : 1,856,358 = 1,856,358 : x
2. Step 2: Convert to fraction form
   1,267,917/1,856,358 = 1,856,358/x
3. Step 3: Cross multiply
   1,267,917x = 1,856,358 × 1,856,358
4. Step 4: Simplify right side
   1,267,917x = 3,446,065,024,164
5. Step 5: Solve for x
   x = 3,446,065,024,164/1,267,917
6. Step 6: Final answer
   x = 2,717,894.80