Finding the Third Proportional to 1,515,479 and 3,316,360

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,479 : 3,316,360 = 3,316,360 : x
2. Step 2: Convert to fraction form
   1,515,479/3,316,360 = 3,316,360/x
3. Step 3: Cross multiply
   1,515,479x = 3,316,360 × 3,316,360
4. Step 4: Simplify right side
   1,515,479x = 10,998,243,649,600
5. Step 5: Solve for x
   x = 10,998,243,649,600/1,515,479
6. Step 6: Final answer
   x = 7,257,272.22