Finding the Third Proportional to 387,528 and 565,980

Step by Step Solution

1. Step 1: Write the proportion equation
   387,528 : 565,980 = 565,980 : x
2. Step 2: Convert to fraction form
   387,528/565,980 = 565,980/x
3. Step 3: Cross multiply
   387,528x = 565,980 × 565,980
4. Step 4: Simplify right side
   387,528x = 320,333,360,400
5. Step 5: Solve for x
   x = 320,333,360,400/387,528
6. Step 6: Final answer
   x = 826,607.01