Finding the Third Proportional to 456,647.63 and 991,109.25

Step by Step Solution

1. Step 1: Write the proportion equation
   456,647.63 : 991,109.25 = 991,109.25 : x
2. Step 2: Convert to fraction form
   456,647.63/991,109.25 = 991,109.25/x
3. Step 3: Cross multiply
   456,647.63x = 991,109.25 × 991,109.25
4. Step 4: Simplify right side
   456,647.63x = 982,297,545,435.56
5. Step 5: Solve for x
   x = 982,297,545,435.56/456,647.63
6. Step 6: Final answer
   x = 2,151,106.22