Finding the Third Proportional to 156,457.50 and 336,502.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,457.50 : 336,502.50 = 336,502.50 : x
2. Step 2: Convert to fraction form
   156,457.50/336,502.50 = 336,502.50/x
3. Step 3: Cross multiply
   156,457.50x = 336,502.50 × 336,502.50
4. Step 4: Simplify right side
   156,457.50x = 113,233,932,506.25
5. Step 5: Solve for x
   x = 113,233,932,506.25/156,457.50
6. Step 6: Final answer
   x = 723,736.05