Finding the Third Proportional to 14,685,570 and 21,151,611

Step by Step Solution

1. Step 1: Write the proportion equation
   14,685,570 : 21,151,611 = 21,151,611 : x
2. Step 2: Convert to fraction form
   14,685,570/21,151,611 = 21,151,611/x
3. Step 3: Cross multiply
   14,685,570x = 21,151,611 × 21,151,611
4. Step 4: Simplify right side
   14,685,570x = 447,390,647,895,321
5. Step 5: Solve for x
   x = 447,390,647,895,321/14,685,570
6. Step 6: Final answer
   x = 30,464,643.04