Finding the Third Proportional to 395,311.50 and 846,387

Step by Step Solution

1. Step 1: Write the proportion equation
   395,311.50 : 846,387 = 846,387 : x
2. Step 2: Convert to fraction form
   395,311.50/846,387 = 846,387/x
3. Step 3: Cross multiply
   395,311.50x = 846,387 × 846,387
4. Step 4: Simplify right side
   395,311.50x = 716,370,953,769
5. Step 5: Solve for x
   x = 716,370,953,769/395,311.50
6. Step 6: Final answer
   x = 1,812,168.26