Finding the Third Proportional to 245,426 and 377,108

Step by Step Solution

1. Step 1: Write the proportion equation
   245,426 : 377,108 = 377,108 : x
2. Step 2: Convert to fraction form
   245,426/377,108 = 377,108/x
3. Step 3: Cross multiply
   245,426x = 377,108 × 377,108
4. Step 4: Simplify right side
   245,426x = 142,210,443,664
5. Step 5: Solve for x
   x = 142,210,443,664/245,426
6. Step 6: Final answer
   x = 579,443.27