Finding the Third Proportional to 715,391 and 1,555,030

Step by Step Solution

1. Step 1: Write the proportion equation
   715,391 : 1,555,030 = 1,555,030 : x
2. Step 2: Convert to fraction form
   715,391/1,555,030 = 1,555,030/x
3. Step 3: Cross multiply
   715,391x = 1,555,030 × 1,555,030
4. Step 4: Simplify right side
   715,391x = 2,418,118,300,900
5. Step 5: Solve for x
   x = 2,418,118,300,900/715,391
6. Step 6: Final answer
   x = 3,380,135.20