Finding the Third Proportional to 67,478,871,659.63 and 140,542,928,523

Step by Step Solution

1. Step 1: Write the proportion equation
   67,478,871,659.63 : 140,542,928,523 = 140,542,928,523 : x
2. Step 2: Convert to fraction form
   67,478,871,659.63/140,542,928,523 = 140,542,928,523/x
3. Step 3: Cross multiply
   67,478,871,659.63x = 140,542,928,523 × 140,542,928,523
4. Step 4: Simplify right side
   67,478,871,659.63x = 19,752,314,757,821,086,302,208
5. Step 5: Solve for x
   x = 19,752,314,757,821,086,302,208/67,478,871,659.63
6. Step 6: Final answer
   x = 292,718,509,838.97