Finding the Third Proportional to 1,202,428 and 1,864,392

Step by Step Solution

1. Step 1: Write the proportion equation
   1,202,428 : 1,864,392 = 1,864,392 : x
2. Step 2: Convert to fraction form
   1,202,428/1,864,392 = 1,864,392/x
3. Step 3: Cross multiply
   1,202,428x = 1,864,392 × 1,864,392
4. Step 4: Simplify right side
   1,202,428x = 3,475,957,529,664
5. Step 5: Solve for x
   x = 3,475,957,529,664/1,202,428
6. Step 6: Final answer
   x = 2,890,782.26