Finding the Third Proportional to 1,312,388 and 1,876,707

Step by Step Solution

1. Step 1: Write the proportion equation
   1,312,388 : 1,876,707 = 1,876,707 : x
2. Step 2: Convert to fraction form
   1,312,388/1,876,707 = 1,876,707/x
3. Step 3: Cross multiply
   1,312,388x = 1,876,707 × 1,876,707
4. Step 4: Simplify right side
   1,312,388x = 3,522,029,163,849
5. Step 5: Solve for x
   x = 3,522,029,163,849/1,312,388
6. Step 6: Final answer
   x = 2,683,679.80