Finding the Third Proportional to 67,404,885 and 145,192,554

Step by Step Solution

1. Step 1: Write the proportion equation
   67,404,885 : 145,192,554 = 145,192,554 : x
2. Step 2: Convert to fraction form
   67,404,885/145,192,554 = 145,192,554/x
3. Step 3: Cross multiply
   67,404,885x = 145,192,554 × 145,192,554
4. Step 4: Simplify right side
   67,404,885x = 21,080,877,737,042,916
5. Step 5: Solve for x
   x = 21,080,877,737,042,916/67,404,885
6. Step 6: Final answer
   x = 312,749,999.31