Finding the Third Proportional to 140,904 and 291,123

Step by Step Solution

1. Step 1: Write the proportion equation
   140,904 : 291,123 = 291,123 : x
2. Step 2: Convert to fraction form
   140,904/291,123 = 291,123/x
3. Step 3: Cross multiply
   140,904x = 291,123 × 291,123
4. Step 4: Simplify right side
   140,904x = 84,752,601,129
5. Step 5: Solve for x
   x = 84,752,601,129/140,904
6. Step 6: Final answer
   x = 601,491.80