Finding the Third Proportional to 1,243,705 and 2,636,871

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,705 : 2,636,871 = 2,636,871 : x
2. Step 2: Convert to fraction form
   1,243,705/2,636,871 = 2,636,871/x
3. Step 3: Cross multiply
   1,243,705x = 2,636,871 × 2,636,871
4. Step 4: Simplify right side
   1,243,705x = 6,953,088,670,641
5. Step 5: Solve for x
   x = 6,953,088,670,641/1,243,705
6. Step 6: Final answer
   x = 5,590,625.33