Finding the Third Proportional to 359,808 and 528,047

Step by Step Solution

1. Step 1: Write the proportion equation
   359,808 : 528,047 = 528,047 : x
2. Step 2: Convert to fraction form
   359,808/528,047 = 528,047/x
3. Step 3: Cross multiply
   359,808x = 528,047 × 528,047
4. Step 4: Simplify right side
   359,808x = 278,833,634,209
5. Step 5: Solve for x
   x = 278,833,634,209/359,808
6. Step 6: Final answer
   x = 774,951.18