Finding the Third Proportional to 918,147 and 1,988,820

Step by Step Solution

1. Step 1: Write the proportion equation
   918,147 : 1,988,820 = 1,988,820 : x
2. Step 2: Convert to fraction form
   918,147/1,988,820 = 1,988,820/x
3. Step 3: Cross multiply
   918,147x = 1,988,820 × 1,988,820
4. Step 4: Simplify right side
   918,147x = 3,955,404,992,400
5. Step 5: Solve for x
   x = 3,955,404,992,400/918,147
6. Step 6: Final answer
   x = 4,308,030.19