Finding the Third Proportional to 3,772,064 and 7,718,440

Step by Step Solution

1. Step 1: Write the proportion equation
   3,772,064 : 7,718,440 = 7,718,440 : x
2. Step 2: Convert to fraction form
   3,772,064/7,718,440 = 7,718,440/x
3. Step 3: Cross multiply
   3,772,064x = 7,718,440 × 7,718,440
4. Step 4: Simplify right side
   3,772,064x = 59,574,316,033,600
5. Step 5: Solve for x
   x = 59,574,316,033,600/3,772,064
6. Step 6: Final answer
   x = 15,793,559.18