Finding the Third Proportional to 1,921,404 and 4,127,726

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921,404 : 4,127,726 = 4,127,726 : x
2. Step 2: Convert to fraction form
   1,921,404/4,127,726 = 4,127,726/x
3. Step 3: Cross multiply
   1,921,404x = 4,127,726 × 4,127,726
4. Step 4: Simplify right side
   1,921,404x = 17,038,121,931,076
5. Step 5: Solve for x
   x = 17,038,121,931,076/1,921,404
6. Step 6: Final answer
   x = 8,867,537.45