Finding the Third Proportional to 1,312,428 and 1,876,770

Step by Step Solution

1. Step 1: Write the proportion equation
   1,312,428 : 1,876,770 = 1,876,770 : x
2. Step 2: Convert to fraction form
   1,312,428/1,876,770 = 1,876,770/x
3. Step 3: Cross multiply
   1,312,428x = 1,876,770 × 1,876,770
4. Step 4: Simplify right side
   1,312,428x = 3,522,265,632,900
5. Step 5: Solve for x
   x = 3,522,265,632,900/1,312,428
6. Step 6: Final answer
   x = 2,683,778.18