Finding the Third Proportional to 9,764,671.50 and 21,389,508

Step by Step Solution

1. Step 1: Write the proportion equation
   9,764,671.50 : 21,389,508 = 21,389,508 : x
2. Step 2: Convert to fraction form
   9,764,671.50/21,389,508 = 21,389,508/x
3. Step 3: Cross multiply
   9,764,671.50x = 21,389,508 × 21,389,508
4. Step 4: Simplify right side
   9,764,671.50x = 457,511,052,482,064
5. Step 5: Solve for x
   x = 457,511,052,482,064/9,764,671.50
6. Step 6: Final answer
   x = 46,853,706.50