Finding the Third Proportional to 385,827 and 846,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   385,827 : 846,355.50 = 846,355.50 : x
2. Step 2: Convert to fraction form
   385,827/846,355.50 = 846,355.50/x
3. Step 3: Cross multiply
   385,827x = 846,355.50 × 846,355.50
4. Step 4: Simplify right side
   385,827x = 716,317,632,380.25
5. Step 5: Solve for x
   x = 716,317,632,380.25/385,827
6. Step 6: Final answer
   x = 1,856,577.25