Finding the Third Proportional to 1,027,389 and 1,636,218

Step by Step Solution

1. Step 1: Write the proportion equation
   1,027,389 : 1,636,218 = 1,636,218 : x
2. Step 2: Convert to fraction form
   1,027,389/1,636,218 = 1,636,218/x
3. Step 3: Cross multiply
   1,027,389x = 1,636,218 × 1,636,218
4. Step 4: Simplify right side
   1,027,389x = 2,677,209,343,524
5. Step 5: Solve for x
   x = 2,677,209,343,524/1,027,389
6. Step 6: Final answer
   x = 2,605,838.05