Finding the Third Proportional to 64,166,736 and 133,621,116

Step by Step Solution

1. Step 1: Write the proportion equation
   64,166,736 : 133,621,116 = 133,621,116 : x
2. Step 2: Convert to fraction form
   64,166,736/133,621,116 = 133,621,116/x
3. Step 3: Cross multiply
   64,166,736x = 133,621,116 × 133,621,116
4. Step 4: Simplify right side
   64,166,736x = 17,854,602,641,085,456
5. Step 5: Solve for x
   x = 17,854,602,641,085,456/64,166,736
6. Step 6: Final answer
   x = 278,253,247.00