Finding the Third Proportional to 140,908 and 291,131

Step by Step Solution

1. Step 1: Write the proportion equation
   140,908 : 291,131 = 291,131 : x
2. Step 2: Convert to fraction form
   140,908/291,131 = 291,131/x
3. Step 3: Cross multiply
   140,908x = 291,131 × 291,131
4. Step 4: Simplify right side
   140,908x = 84,757,259,161
5. Step 5: Solve for x
   x = 84,757,259,161/140,908
6. Step 6: Final answer
   x = 601,507.79