Finding the Third Proportional to 140,922 and 308,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,922 : 308,992.50 = 308,992.50 : x
2. Step 2: Convert to fraction form
   140,922/308,992.50 = 308,992.50/x
3. Step 3: Cross multiply
   140,922x = 308,992.50 × 308,992.50
4. Step 4: Simplify right side
   140,922x = 95,476,365,056.25
5. Step 5: Solve for x
   x = 95,476,365,056.25/140,922
6. Step 6: Final answer
   x = 677,512.13