Finding the Third Proportional to 3,895,772 and 8,538,776

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895,772 : 8,538,776 = 8,538,776 : x
2. Step 2: Convert to fraction form
   3,895,772/8,538,776 = 8,538,776/x
3. Step 3: Cross multiply
   3,895,772x = 8,538,776 × 8,538,776
4. Step 4: Simplify right side
   3,895,772x = 72,910,695,578,176
5. Step 5: Solve for x
   x = 72,910,695,578,176/3,895,772
6. Step 6: Final answer
   x = 18,715,339.50