Finding the Third Proportional to 453,780 and 990,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   453,780 : 990,085.50 = 990,085.50 : x
2. Step 2: Convert to fraction form
   453,780/990,085.50 = 990,085.50/x
3. Step 3: Cross multiply
   453,780x = 990,085.50 × 990,085.50
4. Step 4: Simplify right side
   453,780x = 980,269,297,310.25
5. Step 5: Solve for x
   x = 980,269,297,310.25/453,780
6. Step 6: Final answer
   x = 2,160,230.28