Finding the Third Proportional to 9,790,495 and 21,208,142

Step by Step Solution

1. Step 1: Write the proportion equation
   9,790,495 : 21,208,142 = 21,208,142 : x
2. Step 2: Convert to fraction form
   9,790,495/21,208,142 = 21,208,142/x
3. Step 3: Cross multiply
   9,790,495x = 21,208,142 × 21,208,142
4. Step 4: Simplify right side
   9,790,495x = 449,785,287,092,164
5. Step 5: Solve for x
   x = 449,785,287,092,164/9,790,495
6. Step 6: Final answer
   x = 45,941,015.96