Finding the Third Proportional to 67,389,168 and 145,538,160

Step by Step Solution

1. Step 1: Write the proportion equation
   67,389,168 : 145,538,160 = 145,538,160 : x
2. Step 2: Convert to fraction form
   67,389,168/145,538,160 = 145,538,160/x
3. Step 3: Cross multiply
   67,389,168x = 145,538,160 × 145,538,160
4. Step 4: Simplify right side
   67,389,168x = 21,181,356,016,185,600
5. Step 5: Solve for x
   x = 21,181,356,016,185,600/67,389,168
6. Step 6: Final answer
   x = 314,313,956.45