Finding the Third Proportional to 3,276,430 and 5,128,538

Step by Step Solution

1. Step 1: Write the proportion equation
   3,276,430 : 5,128,538 = 5,128,538 : x
2. Step 2: Convert to fraction form
   3,276,430/5,128,538 = 5,128,538/x
3. Step 3: Cross multiply
   3,276,430x = 5,128,538 × 5,128,538
4. Step 4: Simplify right side
   3,276,430x = 26,301,902,017,444
5. Step 5: Solve for x
   x = 26,301,902,017,444/3,276,430
6. Step 6: Final answer
   x = 8,027,609.93