Finding the Third Proportional to 5,585,028 and 8,539,980

Step by Step Solution

1. Step 1: Write the proportion equation
   5,585,028 : 8,539,980 = 8,539,980 : x
2. Step 2: Convert to fraction form
   5,585,028/8,539,980 = 8,539,980/x
3. Step 3: Cross multiply
   5,585,028x = 8,539,980 × 8,539,980
4. Step 4: Simplify right side
   5,585,028x = 72,931,258,400,400
5. Step 5: Solve for x
   x = 72,931,258,400,400/5,585,028
6. Step 6: Final answer
   x = 13,058,351.44