Finding the Third Proportional to 4,209,906 and 5,865,459

Step by Step Solution

1. Step 1: Write the proportion equation
   4,209,906 : 5,865,459 = 5,865,459 : x
2. Step 2: Convert to fraction form
   4,209,906/5,865,459 = 5,865,459/x
3. Step 3: Cross multiply
   4,209,906x = 5,865,459 × 5,865,459
4. Step 4: Simplify right side
   4,209,906x = 34,403,609,280,681
5. Step 5: Solve for x
   x = 34,403,609,280,681/4,209,906
6. Step 6: Final answer
   x = 8,172,061.15