Finding the Third Proportional to 455,352 and 989,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   455,352 : 989,434.50 = 989,434.50 : x
2. Step 2: Convert to fraction form
   455,352/989,434.50 = 989,434.50/x
3. Step 3: Cross multiply
   455,352x = 989,434.50 × 989,434.50
4. Step 4: Simplify right side
   455,352x = 978,980,629,790.25
5. Step 5: Solve for x
   x = 978,980,629,790.25/455,352
6. Step 6: Final answer
   x = 2,149,942.53