Finding the Third Proportional to 89,677,038 and 186,511,216.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,677,038 : 186,511,216.50 = 186,511,216.50 : x
2. Step 2: Convert to fraction form
   89,677,038/186,511,216.50 = 186,511,216.50/x
3. Step 3: Cross multiply
   89,677,038x = 186,511,216.50 × 186,511,216.50
4. Step 4: Simplify right side
   89,677,038x = 34,786,433,880,309,872
5. Step 5: Solve for x
   x = 34,786,433,880,309,872/89,677,038
6. Step 6: Final answer
   x = 387,907,926.67