Finding the Third Proportional to 451,261.69 and 991,085.63

Step by Step Solution

1. Step 1: Write the proportion equation
   451,261.69 : 991,085.63 = 991,085.63 : x
2. Step 2: Convert to fraction form
   451,261.69/991,085.63 = 991,085.63/x
3. Step 3: Cross multiply
   451,261.69x = 991,085.63 × 991,085.63
4. Step 4: Simplify right side
   451,261.69x = 982,250,716,081.64
5. Step 5: Solve for x
   x = 982,250,716,081.64/451,261.69
6. Step 6: Final answer
   x = 2,176,676.51