Finding the Third Proportional to 407,754.50 and 852,688

Step by Step Solution

1. Step 1: Write the proportion equation
   407,754.50 : 852,688 = 852,688 : x
2. Step 2: Convert to fraction form
   407,754.50/852,688 = 852,688/x
3. Step 3: Cross multiply
   407,754.50x = 852,688 × 852,688
4. Step 4: Simplify right side
   407,754.50x = 727,076,825,344
5. Step 5: Solve for x
   x = 727,076,825,344/407,754.50
6. Step 6: Final answer
   x = 1,783,123.98