Finding the Third Proportional to 86,816,550 and 188,734,092

Step by Step Solution

1. Step 1: Write the proportion equation
   86,816,550 : 188,734,092 = 188,734,092 : x
2. Step 2: Convert to fraction form
   86,816,550/188,734,092 = 188,734,092/x
3. Step 3: Cross multiply
   86,816,550x = 188,734,092 × 188,734,092
4. Step 4: Simplify right side
   86,816,550x = 35,620,557,483,064,464
5. Step 5: Solve for x
   x = 35,620,557,483,064,464/86,816,550
6. Step 6: Final answer
   x = 410,296,855.65