Finding the Third Proportional to 528,160 and 780,592

Step by Step Solution

1. Step 1: Write the proportion equation
   528,160 : 780,592 = 780,592 : x
2. Step 2: Convert to fraction form
   528,160/780,592 = 780,592/x
3. Step 3: Cross multiply
   528,160x = 780,592 × 780,592
4. Step 4: Simplify right side
   528,160x = 609,323,870,464
5. Step 5: Solve for x
   x = 609,323,870,464/528,160
6. Step 6: Final answer
   x = 1,153,672.88