Finding the Third Proportional to 18,584,857.69 and 39,860,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,584,857.69 : 39,860,059.50 = 39,860,059.50 : x
2. Step 2: Convert to fraction form
   18,584,857.69/39,860,059.50 = 39,860,059.50/x
3. Step 3: Cross multiply
   18,584,857.69x = 39,860,059.50 × 39,860,059.50
4. Step 4: Simplify right side
   18,584,857.69x = 1,588,824,343,343,540.25
5. Step 5: Solve for x
   x = 1,588,824,343,343,540.25/18,584,857.69
6. Step 6: Final answer
   x = 85,490,261.48