Finding the Third Proportional to 156,914 and 342,986

Step by Step Solution

1. Step 1: Write the proportion equation
   156,914 : 342,986 = 342,986 : x
2. Step 2: Convert to fraction form
   156,914/342,986 = 342,986/x
3. Step 3: Cross multiply
   156,914x = 342,986 × 342,986
4. Step 4: Simplify right side
   156,914x = 117,639,396,196
5. Step 5: Solve for x
   x = 117,639,396,196/156,914
6. Step 6: Final answer
   x = 749,706.18