Finding the Third Proportional to 5,978,165.50 and 8,388,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978,165.50 : 8,388,543.50 = 8,388,543.50 : x
2. Step 2: Convert to fraction form
   5,978,165.50/8,388,543.50 = 8,388,543.50/x
3. Step 3: Cross multiply
   5,978,165.50x = 8,388,543.50 × 8,388,543.50
4. Step 4: Simplify right side
   5,978,165.50x = 70,367,662,051,392.25
5. Step 5: Solve for x
   x = 70,367,662,051,392.25/5,978,165.50
6. Step 6: Final answer
   x = 11,770,778.52