Finding the Third Proportional to 5,673,258 and 8,515,692

Step by Step Solution

1. Step 1: Write the proportion equation
   5,673,258 : 8,515,692 = 8,515,692 : x
2. Step 2: Convert to fraction form
   5,673,258/8,515,692 = 8,515,692/x
3. Step 3: Cross multiply
   5,673,258x = 8,515,692 × 8,515,692
4. Step 4: Simplify right side
   5,673,258x = 72,517,010,238,864
5. Step 5: Solve for x
   x = 72,517,010,238,864/5,673,258
6. Step 6: Final answer
   x = 12,782,251.44