Finding the Third Proportional to 1,850,720 and 4,458,459

Step by Step Solution

1. Step 1: Write the proportion equation
   1,850,720 : 4,458,459 = 4,458,459 : x
2. Step 2: Convert to fraction form
   1,850,720/4,458,459 = 4,458,459/x
3. Step 3: Cross multiply
   1,850,720x = 4,458,459 × 4,458,459
4. Step 4: Simplify right side
   1,850,720x = 19,877,856,654,681
5. Step 5: Solve for x
   x = 19,877,856,654,681/1,850,720
6. Step 6: Final answer
   x = 10,740,607.25