Finding the Third Proportional to 1,638,938 and 3,576,748

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,938 : 3,576,748 = 3,576,748 : x
2. Step 2: Convert to fraction form
   1,638,938/3,576,748 = 3,576,748/x
3. Step 3: Cross multiply
   1,638,938x = 3,576,748 × 3,576,748
4. Step 4: Simplify right side
   1,638,938x = 12,793,126,255,504
5. Step 5: Solve for x
   x = 12,793,126,255,504/1,638,938
6. Step 6: Final answer
   x = 7,805,741.43