Finding the Third Proportional to 1,940,346 and 4,220,454

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940,346 : 4,220,454 = 4,220,454 : x
2. Step 2: Convert to fraction form
   1,940,346/4,220,454 = 4,220,454/x
3. Step 3: Cross multiply
   1,940,346x = 4,220,454 × 4,220,454
4. Step 4: Simplify right side
   1,940,346x = 17,812,231,966,116
5. Step 5: Solve for x
   x = 17,812,231,966,116/1,940,346
6. Step 6: Final answer
   x = 9,179,925.62