Finding the Third Proportional to 323,725.50 and 711,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   323,725.50 : 711,706.50 = 711,706.50 : x
2. Step 2: Convert to fraction form
   323,725.50/711,706.50 = 711,706.50/x
3. Step 3: Cross multiply
   323,725.50x = 711,706.50 × 711,706.50
4. Step 4: Simplify right side
   323,725.50x = 506,526,142,142.25
5. Step 5: Solve for x
   x = 506,526,142,142.25/323,725.50
6. Step 6: Final answer
   x = 1,564,677.92