Finding the Third Proportional to 527,638.50 and 818,073

Step by Step Solution

1. Step 1: Write the proportion equation
   527,638.50 : 818,073 = 818,073 : x
2. Step 2: Convert to fraction form
   527,638.50/818,073 = 818,073/x
3. Step 3: Cross multiply
   527,638.50x = 818,073 × 818,073
4. Step 4: Simplify right side
   527,638.50x = 669,243,433,329
5. Step 5: Solve for x
   x = 669,243,433,329/527,638.50
6. Step 6: Final answer
   x = 1,268,374.91