Finding the Third Proportional to 96,978,426.50 and 145,325,780

Step by Step Solution

1. Step 1: Write the proportion equation
   96,978,426.50 : 145,325,780 = 145,325,780 : x
2. Step 2: Convert to fraction form
   96,978,426.50/145,325,780 = 145,325,780/x
3. Step 3: Cross multiply
   96,978,426.50x = 145,325,780 × 145,325,780
4. Step 4: Simplify right side
   96,978,426.50x = 21,119,582,332,608,400
5. Step 5: Solve for x
   x = 21,119,582,332,608,400/96,978,426.50
6. Step 6: Final answer
   x = 217,776,087.89