Finding the Third Proportional to 1,918,632 and 4,127,580

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918,632 : 4,127,580 = 4,127,580 : x
2. Step 2: Convert to fraction form
   1,918,632/4,127,580 = 4,127,580/x
3. Step 3: Cross multiply
   1,918,632x = 4,127,580 × 4,127,580
4. Step 4: Simplify right side
   1,918,632x = 17,036,916,656,400
5. Step 5: Solve for x
   x = 17,036,916,656,400/1,918,632
6. Step 6: Final answer
   x = 8,879,720.89