Finding the Third Proportional to 9,277,780.50 and 19,191,978

Step by Step Solution

1. Step 1: Write the proportion equation
   9,277,780.50 : 19,191,978 = 19,191,978 : x
2. Step 2: Convert to fraction form
   9,277,780.50/19,191,978 = 19,191,978/x
3. Step 3: Cross multiply
   9,277,780.50x = 19,191,978 × 19,191,978
4. Step 4: Simplify right side
   9,277,780.50x = 368,332,019,552,484
5. Step 5: Solve for x
   x = 368,332,019,552,484/9,277,780.50
6. Step 6: Final answer
   x = 39,700,445.55