Finding the Third Proportional to 156,770 and 342,986

Step by Step Solution

1. Step 1: Write the proportion equation
   156,770 : 342,986 = 342,986 : x
2. Step 2: Convert to fraction form
   156,770/342,986 = 342,986/x
3. Step 3: Cross multiply
   156,770x = 342,986 × 342,986
4. Step 4: Simplify right side
   156,770x = 117,639,396,196
5. Step 5: Solve for x
   x = 117,639,396,196/156,770
6. Step 6: Final answer
   x = 750,394.82