Finding the Third Proportional to 646,260 and 1,380,484

Step by Step Solution

1. Step 1: Write the proportion equation
   646,260 : 1,380,484 = 1,380,484 : x
2. Step 2: Convert to fraction form
   646,260/1,380,484 = 1,380,484/x
3. Step 3: Cross multiply
   646,260x = 1,380,484 × 1,380,484
4. Step 4: Simplify right side
   646,260x = 1,905,736,074,256
5. Step 5: Solve for x
   x = 1,905,736,074,256/646,260
6. Step 6: Final answer
   x = 2,948,868.99