Finding the Third Proportional to 4,554,506 and 9,812,756

Step by Step Solution

1. Step 1: Write the proportion equation
   4,554,506 : 9,812,756 = 9,812,756 : x
2. Step 2: Convert to fraction form
   4,554,506/9,812,756 = 9,812,756/x
3. Step 3: Cross multiply
   4,554,506x = 9,812,756 × 9,812,756
4. Step 4: Simplify right side
   4,554,506x = 96,290,180,315,536
5. Step 5: Solve for x
   x = 96,290,180,315,536/4,554,506
6. Step 6: Final answer
   x = 21,141,739.70