Finding the Third Proportional to 2,019,989 and 4,432,423

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019,989 : 4,432,423 = 4,432,423 : x
2. Step 2: Convert to fraction form
   2,019,989/4,432,423 = 4,432,423/x
3. Step 3: Cross multiply
   2,019,989x = 4,432,423 × 4,432,423
4. Step 4: Simplify right side
   2,019,989x = 19,646,373,650,929
5. Step 5: Solve for x
   x = 19,646,373,650,929/2,019,989
6. Step 6: Final answer
   x = 9,725,980.51