Finding the Third Proportional to 1,890,406 and 4,148,225

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890,406 : 4,148,225 = 4,148,225 : x
2. Step 2: Convert to fraction form
   1,890,406/4,148,225 = 4,148,225/x
3. Step 3: Cross multiply
   1,890,406x = 4,148,225 × 4,148,225
4. Step 4: Simplify right side
   1,890,406x = 17,207,770,650,625
5. Step 5: Solve for x
   x = 17,207,770,650,625/1,890,406
6. Step 6: Final answer
   x = 9,102,685.16