Finding the Third Proportional to 243,141 and 368,061

Step by Step Solution

1. Step 1: Write the proportion equation
   243,141 : 368,061 = 368,061 : x
2. Step 2: Convert to fraction form
   243,141/368,061 = 368,061/x
3. Step 3: Cross multiply
   243,141x = 368,061 × 368,061
4. Step 4: Simplify right side
   243,141x = 135,468,899,721
5. Step 5: Solve for x
   x = 135,468,899,721/243,141
6. Step 6: Final answer
   x = 557,161.89