Finding the Third Proportional to 1,328,460 and 2,114,880

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328,460 : 2,114,880 = 2,114,880 : x
2. Step 2: Convert to fraction form
   1,328,460/2,114,880 = 2,114,880/x
3. Step 3: Cross multiply
   1,328,460x = 2,114,880 × 2,114,880
4. Step 4: Simplify right side
   1,328,460x = 4,472,717,414,400
5. Step 5: Solve for x
   x = 4,472,717,414,400/1,328,460
6. Step 6: Final answer
   x = 3,366,843.88