Finding the Third Proportional to 9,790,494 and 21,208,140

Step by Step Solution

1. Step 1: Write the proportion equation
   9,790,494 : 21,208,140 = 21,208,140 : x
2. Step 2: Convert to fraction form
   9,790,494/21,208,140 = 21,208,140/x
3. Step 3: Cross multiply
   9,790,494x = 21,208,140 × 21,208,140
4. Step 4: Simplify right side
   9,790,494x = 449,785,202,259,600
5. Step 5: Solve for x
   x = 449,785,202,259,600/9,790,494
6. Step 6: Final answer
   x = 45,941,011.99