Finding the Third Proportional to 1,966,510 and 4,290,473

Step by Step Solution

1. Step 1: Write the proportion equation
   1,966,510 : 4,290,473 = 4,290,473 : x
2. Step 2: Convert to fraction form
   1,966,510/4,290,473 = 4,290,473/x
3. Step 3: Cross multiply
   1,966,510x = 4,290,473 × 4,290,473
4. Step 4: Simplify right side
   1,966,510x = 18,408,158,563,729
5. Step 5: Solve for x
   x = 18,408,158,563,729/1,966,510
6. Step 6: Final answer
   x = 9,360,826.32