Finding the Third Proportional to 1,236,403 and 2,636,118

Step by Step Solution

1. Step 1: Write the proportion equation
   1,236,403 : 2,636,118 = 2,636,118 : x
2. Step 2: Convert to fraction form
   1,236,403/2,636,118 = 2,636,118/x
3. Step 3: Cross multiply
   1,236,403x = 2,636,118 × 2,636,118
4. Step 4: Simplify right side
   1,236,403x = 6,949,118,109,924
5. Step 5: Solve for x
   x = 6,949,118,109,924/1,236,403
6. Step 6: Final answer
   x = 5,620,431.29