Finding the Third Proportional to 913,806 and 1,980,156

Step by Step Solution

1. Step 1: Write the proportion equation
   913,806 : 1,980,156 = 1,980,156 : x
2. Step 2: Convert to fraction form
   913,806/1,980,156 = 1,980,156/x
3. Step 3: Cross multiply
   913,806x = 1,980,156 × 1,980,156
4. Step 4: Simplify right side
   913,806x = 3,921,017,784,336
5. Step 5: Solve for x
   x = 3,921,017,784,336/913,806
6. Step 6: Final answer
   x = 4,290,864.56