Finding the Third Proportional to 140,402.25 and 302,947.31

Step by Step Solution

1. Step 1: Write the proportion equation
   140,402.25 : 302,947.31 = 302,947.31 : x
2. Step 2: Convert to fraction form
   140,402.25/302,947.31 = 302,947.31/x
3. Step 3: Cross multiply
   140,402.25x = 302,947.31 × 302,947.31
4. Step 4: Simplify right side
   140,402.25x = 91,777,074,150.97
5. Step 5: Solve for x
   x = 91,777,074,150.97/140,402.25
6. Step 6: Final answer
   x = 653,672.39