Finding the Third Proportional to 528,080 and 1,245,380

Step by Step Solution

1. Step 1: Write the proportion equation
   528,080 : 1,245,380 = 1,245,380 : x
2. Step 2: Convert to fraction form
   528,080/1,245,380 = 1,245,380/x
3. Step 3: Cross multiply
   528,080x = 1,245,380 × 1,245,380
4. Step 4: Simplify right side
   528,080x = 1,550,971,344,400
5. Step 5: Solve for x
   x = 1,550,971,344,400/528,080
6. Step 6: Final answer
   x = 2,937,000.73