Finding the Third Proportional to 4,378,340 and 9,581,350

Step by Step Solution

1. Step 1: Write the proportion equation
   4,378,340 : 9,581,350 = 9,581,350 : x
2. Step 2: Convert to fraction form
   4,378,340/9,581,350 = 9,581,350/x
3. Step 3: Cross multiply
   4,378,340x = 9,581,350 × 9,581,350
4. Step 4: Simplify right side
   4,378,340x = 91,802,267,822,500
5. Step 5: Solve for x
   x = 91,802,267,822,500/4,378,340
6. Step 6: Final answer
   x = 20,967,368.41