Finding the Third Proportional to 911,528 and 1,987,070

Step by Step Solution

1. Step 1: Write the proportion equation
   911,528 : 1,987,070 = 1,987,070 : x
2. Step 2: Convert to fraction form
   911,528/1,987,070 = 1,987,070/x
3. Step 3: Cross multiply
   911,528x = 1,987,070 × 1,987,070
4. Step 4: Simplify right side
   911,528x = 3,948,447,184,900
5. Step 5: Solve for x
   x = 3,948,447,184,900/911,528
6. Step 6: Final answer
   x = 4,331,679.54