Finding the Third Proportional to 1,310,948 and 2,860,209

Step by Step Solution

1. Step 1: Write the proportion equation
   1,310,948 : 2,860,209 = 2,860,209 : x
2. Step 2: Convert to fraction form
   1,310,948/2,860,209 = 2,860,209/x
3. Step 3: Cross multiply
   1,310,948x = 2,860,209 × 2,860,209
4. Step 4: Simplify right side
   1,310,948x = 8,180,795,523,681
5. Step 5: Solve for x
   x = 8,180,795,523,681/1,310,948
6. Step 6: Final answer
   x = 6,240,366.15