Finding the Third Proportional to 10,072,147 and 21,580,148

Step by Step Solution

1. Step 1: Write the proportion equation
   10,072,147 : 21,580,148 = 21,580,148 : x
2. Step 2: Convert to fraction form
   10,072,147/21,580,148 = 21,580,148/x
3. Step 3: Cross multiply
   10,072,147x = 21,580,148 × 21,580,148
4. Step 4: Simplify right side
   10,072,147x = 465,702,787,701,904
5. Step 5: Solve for x
   x = 465,702,787,701,904/10,072,147
6. Step 6: Final answer
   x = 46,236,694.89