Finding the Third Proportional to 86,723,791.50 and 187,737,240

Step by Step Solution

1. Step 1: Write the proportion equation
   86,723,791.50 : 187,737,240 = 187,737,240 : x
2. Step 2: Convert to fraction form
   86,723,791.50/187,737,240 = 187,737,240/x
3. Step 3: Cross multiply
   86,723,791.50x = 187,737,240 × 187,737,240
4. Step 4: Simplify right side
   86,723,791.50x = 35,245,271,282,817,600
5. Step 5: Solve for x
   x = 35,245,271,282,817,600/86,723,791.50
6. Step 6: Final answer
   x = 406,408,330.09