Finding the Third Proportional to 6,605,559 and 10,208,911.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,605,559 : 10,208,911.50 = 10,208,911.50 : x
2. Step 2: Convert to fraction form
   6,605,559/10,208,911.50 = 10,208,911.50/x
3. Step 3: Cross multiply
   6,605,559x = 10,208,911.50 × 10,208,911.50
4. Step 4: Simplify right side
   6,605,559x = 104,221,874,014,832.25
5. Step 5: Solve for x
   x = 104,221,874,014,832.25/6,605,559
6. Step 6: Final answer
   x = 15,777,903.73