Finding the Third Proportional to 4,140,421 and 9,009,841

Step by Step Solution

1. Step 1: Write the proportion equation
   4,140,421 : 9,009,841 = 9,009,841 : x
2. Step 2: Convert to fraction form
   4,140,421/9,009,841 = 9,009,841/x
3. Step 3: Cross multiply
   4,140,421x = 9,009,841 × 9,009,841
4. Step 4: Simplify right side
   4,140,421x = 81,177,234,845,281
5. Step 5: Solve for x
   x = 81,177,234,845,281/4,140,421
6. Step 6: Final answer
   x = 19,606,033.99