Finding the Third Proportional to 602,536.50 and 856,602

Step by Step Solution

1. Step 1: Write the proportion equation
   602,536.50 : 856,602 = 856,602 : x
2. Step 2: Convert to fraction form
   602,536.50/856,602 = 856,602/x
3. Step 3: Cross multiply
   602,536.50x = 856,602 × 856,602
4. Step 4: Simplify right side
   602,536.50x = 733,766,986,404
5. Step 5: Solve for x
   x = 733,766,986,404/602,536.50
6. Step 6: Final answer
   x = 1,217,796.74