Finding the Third Proportional to 915,556 and 1,988,730

Step by Step Solution

1. Step 1: Write the proportion equation
   915,556 : 1,988,730 = 1,988,730 : x
2. Step 2: Convert to fraction form
   915,556/1,988,730 = 1,988,730/x
3. Step 3: Cross multiply
   915,556x = 1,988,730 × 1,988,730
4. Step 4: Simplify right side
   915,556x = 3,955,047,012,900
5. Step 5: Solve for x
   x = 3,955,047,012,900/915,556
6. Step 6: Final answer
   x = 4,319,830.81