Finding the Third Proportional to 156,684 and 341,434

Step by Step Solution

1. Step 1: Write the proportion equation
   156,684 : 341,434 = 341,434 : x
2. Step 2: Convert to fraction form
   156,684/341,434 = 341,434/x
3. Step 3: Cross multiply
   156,684x = 341,434 × 341,434
4. Step 4: Simplify right side
   156,684x = 116,577,176,356
5. Step 5: Solve for x
   x = 116,577,176,356/156,684
6. Step 6: Final answer
   x = 744,027.32