Finding the Third Proportional to 67,128,772 and 146,808,008

Step by Step Solution

1. Step 1: Write the proportion equation
   67,128,772 : 146,808,008 = 146,808,008 : x
2. Step 2: Convert to fraction form
   67,128,772/146,808,008 = 146,808,008/x
3. Step 3: Cross multiply
   67,128,772x = 146,808,008 × 146,808,008
4. Step 4: Simplify right side
   67,128,772x = 21,552,591,212,928,064
5. Step 5: Solve for x
   x = 21,552,591,212,928,064/67,128,772
6. Step 6: Final answer
   x = 321,063,391.61