Finding the Third Proportional to 1,296,312 and 1,867,384

Step by Step Solution

1. Step 1: Write the proportion equation
   1,296,312 : 1,867,384 = 1,867,384 : x
2. Step 2: Convert to fraction form
   1,296,312/1,867,384 = 1,867,384/x
3. Step 3: Cross multiply
   1,296,312x = 1,867,384 × 1,867,384
4. Step 4: Simplify right side
   1,296,312x = 3,487,123,003,456
5. Step 5: Solve for x
   x = 3,487,123,003,456/1,296,312
6. Step 6: Final answer
   x = 2,690,033.73