Finding the Third Proportional to 9,971,026 and 21,689,071

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971,026 : 21,689,071 = 21,689,071 : x
2. Step 2: Convert to fraction form
   9,971,026/21,689,071 = 21,689,071/x
3. Step 3: Cross multiply
   9,971,026x = 21,689,071 × 21,689,071
4. Step 4: Simplify right side
   9,971,026x = 470,415,800,843,041
5. Step 5: Solve for x
   x = 470,415,800,843,041/9,971,026
6. Step 6: Final answer
   x = 47,178,274.42