Finding the Third Proportional to 2,365,209 and 5,188,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365,209 : 5,188,225.50 = 5,188,225.50 : x
2. Step 2: Convert to fraction form
   2,365,209/5,188,225.50 = 5,188,225.50/x
3. Step 3: Cross multiply
   2,365,209x = 5,188,225.50 × 5,188,225.50
4. Step 4: Simplify right side
   2,365,209x = 26,917,683,838,850.25
5. Step 5: Solve for x
   x = 26,917,683,838,850.25/2,365,209
6. Step 6: Final answer
   x = 11,380,678.76