Finding the Third Proportional to 9,951,201 and 21,285,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,951,201 : 21,285,706.50 = 21,285,706.50 : x
2. Step 2: Convert to fraction form
   9,951,201/21,285,706.50 = 21,285,706.50/x
3. Step 3: Cross multiply
   9,951,201x = 21,285,706.50 × 21,285,706.50
4. Step 4: Simplify right side
   9,951,201x = 453,081,301,204,142.25
5. Step 5: Solve for x
   x = 453,081,301,204,142.25/9,951,201
6. Step 6: Final answer
   x = 45,530,313.50