Finding the Third Proportional to 453,632 and 990,280

Step by Step Solution

1. Step 1: Write the proportion equation
   453,632 : 990,280 = 990,280 : x
2. Step 2: Convert to fraction form
   453,632/990,280 = 990,280/x
3. Step 3: Cross multiply
   453,632x = 990,280 × 990,280
4. Step 4: Simplify right side
   453,632x = 980,654,478,400
5. Step 5: Solve for x
   x = 980,654,478,400/453,632
6. Step 6: Final answer
   x = 2,161,784.17