Finding the Third Proportional to 19,109,588,942 and 28,664,386,410

Step by Step Solution

1. Step 1: Write the proportion equation
   19,109,588,942 : 28,664,386,410 = 28,664,386,410 : x
2. Step 2: Convert to fraction form
   19,109,588,942/28,664,386,410 = 28,664,386,410/x
3. Step 3: Cross multiply
   19,109,588,942x = 28,664,386,410 × 28,664,386,410
4. Step 4: Simplify right side
   19,109,588,942x = 821,647,048,261,792,694,272
5. Step 5: Solve for x
   x = 821,647,048,261,792,694,272/19,109,588,942
6. Step 6: Final answer
   x = 42,996,584,110.50