Finding the Third Proportional to 1,299,388 and 1,999,796

Step by Step Solution

1. Step 1: Write the proportion equation
   1,299,388 : 1,999,796 = 1,999,796 : x
2. Step 2: Convert to fraction form
   1,299,388/1,999,796 = 1,999,796/x
3. Step 3: Cross multiply
   1,299,388x = 1,999,796 × 1,999,796
4. Step 4: Simplify right side
   1,299,388x = 3,999,184,041,616
5. Step 5: Solve for x
   x = 3,999,184,041,616/1,299,388
6. Step 6: Final answer
   x = 3,077,744.32