Finding the Third Proportional to 89,465,940 and 195,678,792

Step by Step Solution

1. Step 1: Write the proportion equation
   89,465,940 : 195,678,792 = 195,678,792 : x
2. Step 2: Convert to fraction form
   89,465,940/195,678,792 = 195,678,792/x
3. Step 3: Cross multiply
   89,465,940x = 195,678,792 × 195,678,792
4. Step 4: Simplify right side
   89,465,940x = 38,290,189,638,579,264
5. Step 5: Solve for x
   x = 38,290,189,638,579,264/89,465,940
6. Step 6: Final answer
   x = 427,986,221.78