Finding the Third Proportional to 79,790,306.63 and 173,200,216.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,790,306.63 : 173,200,216.50 = 173,200,216.50 : x
2. Step 2: Convert to fraction form
   79,790,306.63/173,200,216.50 = 173,200,216.50/x
3. Step 3: Cross multiply
   79,790,306.63x = 173,200,216.50 × 173,200,216.50
4. Step 4: Simplify right side
   79,790,306.63x = 29,998,314,995,646,872
5. Step 5: Solve for x
   x = 29,998,314,995,646,872/79,790,306.63
6. Step 6: Final answer
   x = 375,964,403.00