Finding the Third Proportional to 2,063,280 and 3,155,978

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063,280 : 3,155,978 = 3,155,978 : x
2. Step 2: Convert to fraction form
   2,063,280/3,155,978 = 3,155,978/x
3. Step 3: Cross multiply
   2,063,280x = 3,155,978 × 3,155,978
4. Step 4: Simplify right side
   2,063,280x = 9,960,197,136,484
5. Step 5: Solve for x
   x = 9,960,197,136,484/2,063,280
6. Step 6: Final answer
   x = 4,827,360.87