Finding the Third Proportional to 12,939,870 and 27,697,457.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,939,870 : 27,697,457.25 = 27,697,457.25 : x
2. Step 2: Convert to fraction form
   12,939,870/27,697,457.25 = 27,697,457.25/x
3. Step 3: Cross multiply
   12,939,870x = 27,697,457.25 × 27,697,457.25
4. Step 4: Simplify right side
   12,939,870x = 767,149,138,115,577.50
5. Step 5: Solve for x
   x = 767,149,138,115,577.50/12,939,870
6. Step 6: Final answer
   x = 59,285,691.29