Finding the Third Proportional to 992,090 and 2,153,308

Step by Step Solution

1. Step 1: Write the proportion equation
   992,090 : 2,153,308 = 2,153,308 : x
2. Step 2: Convert to fraction form
   992,090/2,153,308 = 2,153,308/x
3. Step 3: Cross multiply
   992,090x = 2,153,308 × 2,153,308
4. Step 4: Simplify right side
   992,090x = 4,636,735,342,864
5. Step 5: Solve for x
   x = 4,636,735,342,864/992,090
6. Step 6: Final answer
   x = 4,673,704.34