Finding the Third Proportional to 397,054.50 and 859,710

Step by Step Solution

1. Step 1: Write the proportion equation
   397,054.50 : 859,710 = 859,710 : x
2. Step 2: Convert to fraction form
   397,054.50/859,710 = 859,710/x
3. Step 3: Cross multiply
   397,054.50x = 859,710 × 859,710
4. Step 4: Simplify right side
   397,054.50x = 739,101,284,100
5. Step 5: Solve for x
   x = 739,101,284,100/397,054.50
6. Step 6: Final answer
   x = 1,861,460.54