Finding the Third Proportional to 451,296 and 991,168.88

Step by Step Solution

1. Step 1: Write the proportion equation
   451,296 : 991,168.88 = 991,168.88 : x
2. Step 2: Convert to fraction form
   451,296/991,168.88 = 991,168.88/x
3. Step 3: Cross multiply
   451,296x = 991,168.88 × 991,168.88
4. Step 4: Simplify right side
   451,296x = 982,415,738,768.77
5. Step 5: Solve for x
   x = 982,415,738,768.77/451,296
6. Step 6: Final answer
   x = 2,176,876.68