Finding the Third Proportional to 259,602 and 563,490.38

Step by Step Solution

1. Step 1: Write the proportion equation
   259,602 : 563,490.38 = 563,490.38 : x
2. Step 2: Convert to fraction form
   259,602/563,490.38 = 563,490.38/x
3. Step 3: Cross multiply
   259,602x = 563,490.38 × 563,490.38
4. Step 4: Simplify right side
   259,602x = 317,521,402,717.64
5. Step 5: Solve for x
   x = 317,521,402,717.64/259,602
6. Step 6: Final answer
   x = 1,223,108.46