Finding the Third Proportional to 4,154,300 and 8,638,822

Step by Step Solution

1. Step 1: Write the proportion equation
   4,154,300 : 8,638,822 = 8,638,822 : x
2. Step 2: Convert to fraction form
   4,154,300/8,638,822 = 8,638,822/x
3. Step 3: Cross multiply
   4,154,300x = 8,638,822 × 8,638,822
4. Step 4: Simplify right side
   4,154,300x = 74,629,245,547,684
5. Step 5: Solve for x
   x = 74,629,245,547,684/4,154,300
6. Step 6: Final answer
   x = 17,964,337.08