Finding the Third Proportional to 156,918.50 and 343,179

Step by Step Solution

1. Step 1: Write the proportion equation
   156,918.50 : 343,179 = 343,179 : x
2. Step 2: Convert to fraction form
   156,918.50/343,179 = 343,179/x
3. Step 3: Cross multiply
   156,918.50x = 343,179 × 343,179
4. Step 4: Simplify right side
   156,918.50x = 117,771,826,041
5. Step 5: Solve for x
   x = 117,771,826,041/156,918.50
6. Step 6: Final answer
   x = 750,528.62