Finding the Third Proportional to 10,072,146.50 and 21,580,147

Step by Step Solution

1. Step 1: Write the proportion equation
   10,072,146.50 : 21,580,147 = 21,580,147 : x
2. Step 2: Convert to fraction form
   10,072,146.50/21,580,147 = 21,580,147/x
3. Step 3: Cross multiply
   10,072,146.50x = 21,580,147 × 21,580,147
4. Step 4: Simplify right side
   10,072,146.50x = 465,702,744,541,609
5. Step 5: Solve for x
   x = 465,702,744,541,609/10,072,146.50
6. Step 6: Final answer
   x = 46,236,692.90