Finding the Third Proportional to 89,728,606 and 191,892,492

Step by Step Solution

1. Step 1: Write the proportion equation
   89,728,606 : 191,892,492 = 191,892,492 : x
2. Step 2: Convert to fraction form
   89,728,606/191,892,492 = 191,892,492/x
3. Step 3: Cross multiply
   89,728,606x = 191,892,492 × 191,892,492
4. Step 4: Simplify right side
   89,728,606x = 36,822,728,485,970,064
5. Step 5: Solve for x
   x = 36,822,728,485,970,064/89,728,606
6. Step 6: Final answer
   x = 410,378,920.70