Finding the Third Proportional to 1,260,346 and 1,891,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,260,346 : 1,891,440 = 1,891,440 : x
2. Step 2: Convert to fraction form
   1,260,346/1,891,440 = 1,891,440/x
3. Step 3: Cross multiply
   1,260,346x = 1,891,440 × 1,891,440
4. Step 4: Simplify right side
   1,260,346x = 3,577,545,273,600
5. Step 5: Solve for x
   x = 3,577,545,273,600/1,260,346
6. Step 6: Final answer
   x = 2,838,542.17