Finding the Third Proportional to 678,730 and 1,462,364

Step by Step Solution

1. Step 1: Write the proportion equation
   678,730 : 1,462,364 = 1,462,364 : x
2. Step 2: Convert to fraction form
   678,730/1,462,364 = 1,462,364/x
3. Step 3: Cross multiply
   678,730x = 1,462,364 × 1,462,364
4. Step 4: Simplify right side
   678,730x = 2,138,508,468,496
5. Step 5: Solve for x
   x = 2,138,508,468,496/678,730
6. Step 6: Final answer
   x = 3,150,749.88