Finding the Third Proportional to 715,390 and 1,555,028

Step by Step Solution

1. Step 1: Write the proportion equation
   715,390 : 1,555,028 = 1,555,028 : x
2. Step 2: Convert to fraction form
   715,390/1,555,028 = 1,555,028/x
3. Step 3: Cross multiply
   715,390x = 1,555,028 × 1,555,028
4. Step 4: Simplify right side
   715,390x = 2,418,112,080,784
5. Step 5: Solve for x
   x = 2,418,112,080,784/715,390
6. Step 6: Final answer
   x = 3,380,131.23