Finding the Third Proportional to 1,865,468 and 4,078,912

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865,468 : 4,078,912 = 4,078,912 : x
2. Step 2: Convert to fraction form
   1,865,468/4,078,912 = 4,078,912/x
3. Step 3: Cross multiply
   1,865,468x = 4,078,912 × 4,078,912
4. Step 4: Simplify right side
   1,865,468x = 16,637,523,103,744
5. Step 5: Solve for x
   x = 16,637,523,103,744/1,865,468
6. Step 6: Final answer
   x = 8,918,685.88