Finding the Third Proportional to 9,772,430 and 21,059,532

Step by Step Solution

1. Step 1: Write the proportion equation
   9,772,430 : 21,059,532 = 21,059,532 : x
2. Step 2: Convert to fraction form
   9,772,430/21,059,532 = 21,059,532/x
3. Step 3: Cross multiply
   9,772,430x = 21,059,532 × 21,059,532
4. Step 4: Simplify right side
   9,772,430x = 443,503,888,059,024
5. Step 5: Solve for x
   x = 443,503,888,059,024/9,772,430
6. Step 6: Final answer
   x = 45,383,173.69