Finding the Third Proportional to 2,020,112 and 4,420,272

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020,112 : 4,420,272 = 4,420,272 : x
2. Step 2: Convert to fraction form
   2,020,112/4,420,272 = 4,420,272/x
3. Step 3: Cross multiply
   2,020,112x = 4,420,272 × 4,420,272
4. Step 4: Simplify right side
   2,020,112x = 19,538,804,553,984
5. Step 5: Solve for x
   x = 19,538,804,553,984/2,020,112
6. Step 6: Final answer
   x = 9,672,139.24