Finding the Third Proportional to 12,787,457 and 27,398,870

Step by Step Solution

1. Step 1: Write the proportion equation
   12,787,457 : 27,398,870 = 27,398,870 : x
2. Step 2: Convert to fraction form
   12,787,457/27,398,870 = 27,398,870/x
3. Step 3: Cross multiply
   12,787,457x = 27,398,870 × 27,398,870
4. Step 4: Simplify right side
   12,787,457x = 750,698,077,276,900
5. Step 5: Solve for x
   x = 750,698,077,276,900/12,787,457
6. Step 6: Final answer
   x = 58,705,814.40