Finding the Third Proportional to 156,780 and 242,838

Step by Step Solution

1. Step 1: Write the proportion equation
   156,780 : 242,838 = 242,838 : x
2. Step 2: Convert to fraction form
   156,780/242,838 = 242,838/x
3. Step 3: Cross multiply
   156,780x = 242,838 × 242,838
4. Step 4: Simplify right side
   156,780x = 58,970,294,244
5. Step 5: Solve for x
   x = 58,970,294,244/156,780
6. Step 6: Final answer
   x = 376,134.04