Finding the Third Proportional to 725,112 and 1,555,146

Step by Step Solution

1. Step 1: Write the proportion equation
   725,112 : 1,555,146 = 1,555,146 : x
2. Step 2: Convert to fraction form
   725,112/1,555,146 = 1,555,146/x
3. Step 3: Cross multiply
   725,112x = 1,555,146 × 1,555,146
4. Step 4: Simplify right side
   725,112x = 2,418,479,081,316
5. Step 5: Solve for x
   x = 2,418,479,081,316/725,112
6. Step 6: Final answer
   x = 3,335,317.97