Finding the Third Proportional to 1,243,419 and 1,977,227

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,419 : 1,977,227 = 1,977,227 : x
2. Step 2: Convert to fraction form
   1,243,419/1,977,227 = 1,977,227/x
3. Step 3: Cross multiply
   1,243,419x = 1,977,227 × 1,977,227
4. Step 4: Simplify right side
   1,243,419x = 3,909,426,609,529
5. Step 5: Solve for x
   x = 3,909,426,609,529/1,243,419
6. Step 6: Final answer
   x = 3,144,094.32