Finding the Third Proportional to 384,528 and 573,606

Step by Step Solution

1. Step 1: Write the proportion equation
   384,528 : 573,606 = 573,606 : x
2. Step 2: Convert to fraction form
   384,528/573,606 = 573,606/x
3. Step 3: Cross multiply
   384,528x = 573,606 × 573,606
4. Step 4: Simplify right side
   384,528x = 329,023,843,236
5. Step 5: Solve for x
   x = 329,023,843,236/384,528
6. Step 6: Final answer
   x = 855,656.40