Finding the Third Proportional to 20,886,738 and 31,930,438.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,886,738 : 31,930,438.50 = 31,930,438.50 : x
2. Step 2: Convert to fraction form
   20,886,738/31,930,438.50 = 31,930,438.50/x
3. Step 3: Cross multiply
   20,886,738x = 31,930,438.50 × 31,930,438.50
4. Step 4: Simplify right side
   20,886,738x = 1,019,552,902,802,282.25
5. Step 5: Solve for x
   x = 1,019,552,902,802,282.25/20,886,738
6. Step 6: Final answer
   x = 48,813,409.87