Finding the Third Proportional to 2,118,532 and 2,720,138

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118,532 : 2,720,138 = 2,720,138 : x
2. Step 2: Convert to fraction form
   2,118,532/2,720,138 = 2,720,138/x
3. Step 3: Cross multiply
   2,118,532x = 2,720,138 × 2,720,138
4. Step 4: Simplify right side
   2,118,532x = 7,399,150,739,044
5. Step 5: Solve for x
   x = 7,399,150,739,044/2,118,532
6. Step 6: Final answer
   x = 3,492,583.89