Finding the Third Proportional to 6,466,870 and 8,991,575

Step by Step Solution

1. Step 1: Write the proportion equation
   6,466,870 : 8,991,575 = 8,991,575 : x
2. Step 2: Convert to fraction form
   6,466,870/8,991,575 = 8,991,575/x
3. Step 3: Cross multiply
   6,466,870x = 8,991,575 × 8,991,575
4. Step 4: Simplify right side
   6,466,870x = 80,848,420,980,625
5. Step 5: Solve for x
   x = 80,848,420,980,625/6,466,870
6. Step 6: Final answer
   x = 12,501,940.04