Finding the Third Proportional to 365,566.50 and 854,139

Step by Step Solution

1. Step 1: Write the proportion equation
   365,566.50 : 854,139 = 854,139 : x
2. Step 2: Convert to fraction form
   365,566.50/854,139 = 854,139/x
3. Step 3: Cross multiply
   365,566.50x = 854,139 × 854,139
4. Step 4: Simplify right side
   365,566.50x = 729,553,431,321
5. Step 5: Solve for x
   x = 729,553,431,321/365,566.50
6. Step 6: Final answer
   x = 1,995,679.12