Finding the Third Proportional to 991,280 and 2,110,432

Step by Step Solution

1. Step 1: Write the proportion equation
   991,280 : 2,110,432 = 2,110,432 : x
2. Step 2: Convert to fraction form
   991,280/2,110,432 = 2,110,432/x
3. Step 3: Cross multiply
   991,280x = 2,110,432 × 2,110,432
4. Step 4: Simplify right side
   991,280x = 4,453,923,226,624
5. Step 5: Solve for x
   x = 4,453,923,226,624/991,280
6. Step 6: Final answer
   x = 4,493,103.09