Finding the Third Proportional to 3,684,528 and 8,685,336

Step by Step Solution

1. Step 1: Write the proportion equation
   3,684,528 : 8,685,336 = 8,685,336 : x
2. Step 2: Convert to fraction form
   3,684,528/8,685,336 = 8,685,336/x
3. Step 3: Cross multiply
   3,684,528x = 8,685,336 × 8,685,336
4. Step 4: Simplify right side
   3,684,528x = 75,435,061,432,896
5. Step 5: Solve for x
   x = 75,435,061,432,896/3,684,528
6. Step 6: Final answer
   x = 20,473,466.73