Finding the Third Proportional to 15,322,342,636.50 and 21,567,832,449

Step by Step Solution

1. Step 1: Write the proportion equation
   15,322,342,636.50 : 21,567,832,449 = 21,567,832,449 : x
2. Step 2: Convert to fraction form
   15,322,342,636.50/21,567,832,449 = 21,567,832,449/x
3. Step 3: Cross multiply
   15,322,342,636.50x = 21,567,832,449 × 21,567,832,449
4. Step 4: Simplify right side
   15,322,342,636.50x = 465,171,396,548,137,320,448
5. Step 5: Solve for x
   x = 465,171,396,548,137,320,448/15,322,342,636.50
6. Step 6: Final answer
   x = 30,359,025,873.76