Finding the Third Proportional to 395,947.50 and 866,724

Step by Step Solution

1. Step 1: Write the proportion equation
   395,947.50 : 866,724 = 866,724 : x
2. Step 2: Convert to fraction form
   395,947.50/866,724 = 866,724/x
3. Step 3: Cross multiply
   395,947.50x = 866,724 × 866,724
4. Step 4: Simplify right side
   395,947.50x = 751,210,492,176
5. Step 5: Solve for x
   x = 751,210,492,176/395,947.50
6. Step 6: Final answer
   x = 1,897,247.72