Finding the Third Proportional to 992,940 and 2,121,432

Step by Step Solution

1. Step 1: Write the proportion equation
   992,940 : 2,121,432 = 2,121,432 : x
2. Step 2: Convert to fraction form
   992,940/2,121,432 = 2,121,432/x
3. Step 3: Cross multiply
   992,940x = 2,121,432 × 2,121,432
4. Step 4: Simplify right side
   992,940x = 4,500,473,730,624
5. Step 5: Solve for x
   x = 4,500,473,730,624/992,940
6. Step 6: Final answer
   x = 4,532,472.99