Finding the Third Proportional to 6,458,463 and 10,406,245.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,458,463 : 10,406,245.50 = 10,406,245.50 : x
2. Step 2: Convert to fraction form
   6,458,463/10,406,245.50 = 10,406,245.50/x
3. Step 3: Cross multiply
   6,458,463x = 10,406,245.50 × 10,406,245.50
4. Step 4: Simplify right side
   6,458,463x = 108,289,945,406,270.25
5. Step 5: Solve for x
   x = 108,289,945,406,270.25/6,458,463
6. Step 6: Final answer
   x = 16,767,138.78