Finding the Third Proportional to 243,061 and 380,422

Step by Step Solution

1. Step 1: Write the proportion equation
   243,061 : 380,422 = 380,422 : x
2. Step 2: Convert to fraction form
   243,061/380,422 = 380,422/x
3. Step 3: Cross multiply
   243,061x = 380,422 × 380,422
4. Step 4: Simplify right side
   243,061x = 144,720,898,084
5. Step 5: Solve for x
   x = 144,720,898,084/243,061
6. Step 6: Final answer
   x = 595,409.79