Finding the Third Proportional to 3,886,758 and 8,538,732

Step by Step Solution

1. Step 1: Write the proportion equation
   3,886,758 : 8,538,732 = 8,538,732 : x
2. Step 2: Convert to fraction form
   3,886,758/8,538,732 = 8,538,732/x
3. Step 3: Cross multiply
   3,886,758x = 8,538,732 × 8,538,732
4. Step 4: Simplify right side
   3,886,758x = 72,909,944,167,824
5. Step 5: Solve for x
   x = 72,909,944,167,824/3,886,758
6. Step 6: Final answer
   x = 18,758,549.97