Finding the Third Proportional to 86,902,564.50 and 188,751,910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,902,564.50 : 188,751,910.50 = 188,751,910.50 : x
2. Step 2: Convert to fraction form
   86,902,564.50/188,751,910.50 = 188,751,910.50/x
3. Step 3: Cross multiply
   86,902,564.50x = 188,751,910.50 × 188,751,910.50
4. Step 4: Simplify right side
   86,902,564.50x = 35,627,283,717,400,012
5. Step 5: Solve for x
   x = 35,627,283,717,400,012/86,902,564.50
6. Step 6: Final answer
   x = 409,968,151.37