Finding the Third Proportional to 1,501,983 and 3,128,220

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501,983 : 3,128,220 = 3,128,220 : x
2. Step 2: Convert to fraction form
   1,501,983/3,128,220 = 3,128,220/x
3. Step 3: Cross multiply
   1,501,983x = 3,128,220 × 3,128,220
4. Step 4: Simplify right side
   1,501,983x = 9,785,760,368,400
5. Step 5: Solve for x
   x = 9,785,760,368,400/1,501,983
6. Step 6: Final answer
   x = 6,515,227.12