Finding the Third Proportional to 890,404 and 1,980,146

Step by Step Solution

1. Step 1: Write the proportion equation
   890,404 : 1,980,146 = 1,980,146 : x
2. Step 2: Convert to fraction form
   890,404/1,980,146 = 1,980,146/x
3. Step 3: Cross multiply
   890,404x = 1,980,146 × 1,980,146
4. Step 4: Simplify right side
   890,404x = 3,920,978,181,316
5. Step 5: Solve for x
   x = 3,920,978,181,316/890,404
6. Step 6: Final answer
   x = 4,403,594.53