Finding the Third Proportional to 89,987,620 and 196,231,592

Step by Step Solution

1. Step 1: Write the proportion equation
   89,987,620 : 196,231,592 = 196,231,592 : x
2. Step 2: Convert to fraction form
   89,987,620/196,231,592 = 196,231,592/x
3. Step 3: Cross multiply
   89,987,620x = 196,231,592 × 196,231,592
4. Step 4: Simplify right side
   89,987,620x = 38,506,837,698,854,464
5. Step 5: Solve for x
   x = 38,506,837,698,854,464/89,987,620
6. Step 6: Final answer
   x = 427,912,613.97