Finding the Third Proportional to 145,131.75 and 307,881

Step by Step Solution

1. Step 1: Write the proportion equation
   145,131.75 : 307,881 = 307,881 : x
2. Step 2: Convert to fraction form
   145,131.75/307,881 = 307,881/x
3. Step 3: Cross multiply
   145,131.75x = 307,881 × 307,881
4. Step 4: Simplify right side
   145,131.75x = 94,790,710,161
5. Step 5: Solve for x
   x = 94,790,710,161/145,131.75
6. Step 6: Final answer
   x = 653,135.58