Finding the Third Proportional to 120,783,441,478 and 262,772,850,121

Step by Step Solution

1. Step 1: Write the proportion equation
   120,783,441,478 : 262,772,850,121 = 262,772,850,121 : x
2. Step 2: Convert to fraction form
   120,783,441,478/262,772,850,121 = 262,772,850,121/x
3. Step 3: Cross multiply
   120,783,441,478x = 262,772,850,121 × 262,772,850,121
4. Step 4: Simplify right side
   120,783,441,478x = 69,049,570,760,713,530,507,264
5. Step 5: Solve for x
   x = 69,049,570,760,713,530,507,264/120,783,441,478
6. Step 6: Final answer
   x = 571,680,769,447.94