Finding the Third Proportional to 156,688 and 341,442

Step by Step Solution

1. Step 1: Write the proportion equation
   156,688 : 341,442 = 341,442 : x
2. Step 2: Convert to fraction form
   156,688/341,442 = 341,442/x
3. Step 3: Cross multiply
   156,688x = 341,442 × 341,442
4. Step 4: Simplify right side
   156,688x = 116,582,639,364
5. Step 5: Solve for x
   x = 116,582,639,364/156,688
6. Step 6: Final answer
   x = 744,043.19