Finding the Third Proportional to 2,211,064 and 4,687,840

Step by Step Solution

1. Step 1: Write the proportion equation
   2,211,064 : 4,687,840 = 4,687,840 : x
2. Step 2: Convert to fraction form
   2,211,064/4,687,840 = 4,687,840/x
3. Step 3: Cross multiply
   2,211,064x = 4,687,840 × 4,687,840
4. Step 4: Simplify right side
   2,211,064x = 21,975,843,865,600
5. Step 5: Solve for x
   x = 21,975,843,865,600/2,211,064
6. Step 6: Final answer
   x = 9,939,035.63