Finding the Third Proportional to 1,077,202 and 1,638,190

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077,202 : 1,638,190 = 1,638,190 : x
2. Step 2: Convert to fraction form
   1,077,202/1,638,190 = 1,638,190/x
3. Step 3: Cross multiply
   1,077,202x = 1,638,190 × 1,638,190
4. Step 4: Simplify right side
   1,077,202x = 2,683,666,476,100
5. Step 5: Solve for x
   x = 2,683,666,476,100/1,077,202
6. Step 6: Final answer
   x = 2,491,330.76