Finding the Third Proportional to 2,021,209 and 3,031,812

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,209 : 3,031,812 = 3,031,812 : x
2. Step 2: Convert to fraction form
   2,021,209/3,031,812 = 3,031,812/x
3. Step 3: Cross multiply
   2,021,209x = 3,031,812 × 3,031,812
4. Step 4: Simplify right side
   2,021,209x = 9,191,884,003,344
5. Step 5: Solve for x
   x = 9,191,884,003,344/2,021,209
6. Step 6: Final answer
   x = 4,547,715.75