Finding the Third Proportional to 385,997 and 850,523.50

Step by Step Solution

1. Step 1: Write the proportion equation
   385,997 : 850,523.50 = 850,523.50 : x
2. Step 2: Convert to fraction form
   385,997/850,523.50 = 850,523.50/x
3. Step 3: Cross multiply
   385,997x = 850,523.50 × 850,523.50
4. Step 4: Simplify right side
   385,997x = 723,390,224,052.25
5. Step 5: Solve for x
   x = 723,390,224,052.25/385,997
6. Step 6: Final answer
   x = 1,874,082.50