Finding the Third Proportional to 1,118,146 and 1,489,730

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,146 : 1,489,730 = 1,489,730 : x
2. Step 2: Convert to fraction form
   1,118,146/1,489,730 = 1,489,730/x
3. Step 3: Cross multiply
   1,118,146x = 1,489,730 × 1,489,730
4. Step 4: Simplify right side
   1,118,146x = 2,219,295,472,900
5. Step 5: Solve for x
   x = 2,219,295,472,900/1,118,146
6. Step 6: Final answer
   x = 1,984,799.37