Finding the Third Proportional to 67,478,877,588 and 140,542,942,023

Step by Step Solution

1. Step 1: Write the proportion equation
   67,478,877,588 : 140,542,942,023 = 140,542,942,023 : x
2. Step 2: Convert to fraction form
   67,478,877,588/140,542,942,023 = 140,542,942,023/x
3. Step 3: Cross multiply
   67,478,877,588x = 140,542,942,023 × 140,542,942,023
4. Step 4: Simplify right side
   67,478,877,588x = 19,752,318,552,480,338,149,376
5. Step 5: Solve for x
   x = 19,752,318,552,480,338,149,376/67,478,877,588
6. Step 6: Final answer
   x = 292,718,540,356.89