Finding the Third Proportional to 156,946 and 339,960

Step by Step Solution

1. Step 1: Write the proportion equation
   156,946 : 339,960 = 339,960 : x
2. Step 2: Convert to fraction form
   156,946/339,960 = 339,960/x
3. Step 3: Cross multiply
   156,946x = 339,960 × 339,960
4. Step 4: Simplify right side
   156,946x = 115,572,801,600
5. Step 5: Solve for x
   x = 115,572,801,600/156,946
6. Step 6: Final answer
   x = 736,385.77