Finding the Third Proportional to 1,098,978 and 2,343,120

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098,978 : 2,343,120 = 2,343,120 : x
2. Step 2: Convert to fraction form
   1,098,978/2,343,120 = 2,343,120/x
3. Step 3: Cross multiply
   1,098,978x = 2,343,120 × 2,343,120
4. Step 4: Simplify right side
   1,098,978x = 5,490,211,334,400
5. Step 5: Solve for x
   x = 5,490,211,334,400/1,098,978
6. Step 6: Final answer
   x = 4,995,742.71