Finding the Third Proportional to 11,700,636 and 17,861,994

Step by Step Solution

1. Step 1: Write the proportion equation
   11,700,636 : 17,861,994 = 17,861,994 : x
2. Step 2: Convert to fraction form
   11,700,636/17,861,994 = 17,861,994/x
3. Step 3: Cross multiply
   11,700,636x = 17,861,994 × 17,861,994
4. Step 4: Simplify right side
   11,700,636x = 319,050,829,656,036
5. Step 5: Solve for x
   x = 319,050,829,656,036/11,700,636
6. Step 6: Final answer
   x = 27,267,819.43