Finding the Third Proportional to 12,787,456 and 27,398,871

Step by Step Solution

1. Step 1: Write the proportion equation
   12,787,456 : 27,398,871 = 27,398,871 : x
2. Step 2: Convert to fraction form
   12,787,456/27,398,871 = 27,398,871/x
3. Step 3: Cross multiply
   12,787,456x = 27,398,871 × 27,398,871
4. Step 4: Simplify right side
   12,787,456x = 750,698,132,074,641
5. Step 5: Solve for x
   x = 750,698,132,074,641/12,787,456
6. Step 6: Final answer
   x = 58,705,823.28