Finding the Third Proportional to 528,129 and 1,140,432

Step by Step Solution

1. Step 1: Write the proportion equation
   528,129 : 1,140,432 = 1,140,432 : x
2. Step 2: Convert to fraction form
   528,129/1,140,432 = 1,140,432/x
3. Step 3: Cross multiply
   528,129x = 1,140,432 × 1,140,432
4. Step 4: Simplify right side
   528,129x = 1,300,585,146,624
5. Step 5: Solve for x
   x = 1,300,585,146,624/528,129
6. Step 6: Final answer
   x = 2,462,627.78