Finding the Third Proportional to 9,811,812 and 21,447,624

Step by Step Solution

1. Step 1: Write the proportion equation
   9,811,812 : 21,447,624 = 21,447,624 : x
2. Step 2: Convert to fraction form
   9,811,812/21,447,624 = 21,447,624/x
3. Step 3: Cross multiply
   9,811,812x = 21,447,624 × 21,447,624
4. Step 4: Simplify right side
   9,811,812x = 460,000,575,245,376
5. Step 5: Solve for x
   x = 460,000,575,245,376/9,811,812
6. Step 6: Final answer
   x = 46,882,326.65