Finding the Third Proportional to 6,643,137 and 10,847,551.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,643,137 : 10,847,551.50 = 10,847,551.50 : x
2. Step 2: Convert to fraction form
   6,643,137/10,847,551.50 = 10,847,551.50/x
3. Step 3: Cross multiply
   6,643,137x = 10,847,551.50 × 10,847,551.50
4. Step 4: Simplify right side
   6,643,137x = 117,669,373,545,152.25
5. Step 5: Solve for x
   x = 117,669,373,545,152.25/6,643,137
6. Step 6: Final answer
   x = 17,712,922.91