Finding the Third Proportional to 915,548 and 1,988,716

Step by Step Solution

1. Step 1: Write the proportion equation
   915,548 : 1,988,716 = 1,988,716 : x
2. Step 2: Convert to fraction form
   915,548/1,988,716 = 1,988,716/x
3. Step 3: Cross multiply
   915,548x = 1,988,716 × 1,988,716
4. Step 4: Simplify right side
   915,548x = 3,954,991,328,656
5. Step 5: Solve for x
   x = 3,954,991,328,656/915,548
6. Step 6: Final answer
   x = 4,319,807.73