Finding the Third Proportional to 528,120 and 1,140,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   528,120 : 1,140,412.50 = 1,140,412.50 : x
2. Step 2: Convert to fraction form
   528,120/1,140,412.50 = 1,140,412.50/x
3. Step 3: Cross multiply
   528,120x = 1,140,412.50 × 1,140,412.50
4. Step 4: Simplify right side
   528,120x = 1,300,540,670,156.25
5. Step 5: Solve for x
   x = 1,300,540,670,156.25/528,120
6. Step 6: Final answer
   x = 2,462,585.53