Finding the Third Proportional to 4,543,684 and 9,717,656

Step by Step Solution

1. Step 1: Write the proportion equation
   4,543,684 : 9,717,656 = 9,717,656 : x
2. Step 2: Convert to fraction form
   4,543,684/9,717,656 = 9,717,656/x
3. Step 3: Cross multiply
   4,543,684x = 9,717,656 × 9,717,656
4. Step 4: Simplify right side
   4,543,684x = 94,432,838,134,336
5. Step 5: Solve for x
   x = 94,432,838,134,336/4,543,684
6. Step 6: Final answer
   x = 20,783,319.91