Finding the Third Proportional to 359,066 and 556,745

Step by Step Solution

1. Step 1: Write the proportion equation
   359,066 : 556,745 = 556,745 : x
2. Step 2: Convert to fraction form
   359,066/556,745 = 556,745/x
3. Step 3: Cross multiply
   359,066x = 556,745 × 556,745
4. Step 4: Simplify right side
   359,066x = 309,964,995,025
5. Step 5: Solve for x
   x = 309,964,995,025/359,066
6. Step 6: Final answer
   x = 863,253.54