Finding the Third Proportional to 364,139.50 and 569,978

Step by Step Solution

1. Step 1: Write the proportion equation
   364,139.50 : 569,978 = 569,978 : x
2. Step 2: Convert to fraction form
   364,139.50/569,978 = 569,978/x
3. Step 3: Cross multiply
   364,139.50x = 569,978 × 569,978
4. Step 4: Simplify right side
   364,139.50x = 324,874,920,484
5. Step 5: Solve for x
   x = 324,874,920,484/364,139.50
6. Step 6: Final answer
   x = 892,171.60