Finding the Third Proportional to 9,985,912 and 21,510,014

Step by Step Solution

1. Step 1: Write the proportion equation
   9,985,912 : 21,510,014 = 21,510,014 : x
2. Step 2: Convert to fraction form
   9,985,912/21,510,014 = 21,510,014/x
3. Step 3: Cross multiply
   9,985,912x = 21,510,014 × 21,510,014
4. Step 4: Simplify right side
   9,985,912x = 462,680,702,280,196
5. Step 5: Solve for x
   x = 462,680,702,280,196/9,985,912
6. Step 6: Final answer
   x = 46,333,344.64