Finding the Third Proportional to 4,721,820 and 10,166,046

Step by Step Solution

1. Step 1: Write the proportion equation
   4,721,820 : 10,166,046 = 10,166,046 : x
2. Step 2: Convert to fraction form
   4,721,820/10,166,046 = 10,166,046/x
3. Step 3: Cross multiply
   4,721,820x = 10,166,046 × 10,166,046
4. Step 4: Simplify right side
   4,721,820x = 103,348,491,274,116
5. Step 5: Solve for x
   x = 103,348,491,274,116/4,721,820
6. Step 6: Final answer
   x = 21,887,427.15