Finding the Third Proportional to 715,409 and 1,555,064

Step by Step Solution

1. Step 1: Write the proportion equation
   715,409 : 1,555,064 = 1,555,064 : x
2. Step 2: Convert to fraction form
   715,409/1,555,064 = 1,555,064/x
3. Step 3: Cross multiply
   715,409x = 1,555,064 × 1,555,064
4. Step 4: Simplify right side
   715,409x = 2,418,224,044,096
5. Step 5: Solve for x
   x = 2,418,224,044,096/715,409
6. Step 6: Final answer
   x = 3,380,197.96