Finding the Third Proportional to 286,300.50 and 453,271.50

Step by Step Solution

1. Step 1: Write the proportion equation
   286,300.50 : 453,271.50 = 453,271.50 : x
2. Step 2: Convert to fraction form
   286,300.50/453,271.50 = 453,271.50/x
3. Step 3: Cross multiply
   286,300.50x = 453,271.50 × 453,271.50
4. Step 4: Simplify right side
   286,300.50x = 205,455,052,712.25
5. Step 5: Solve for x
   x = 205,455,052,712.25/286,300.50
6. Step 6: Final answer
   x = 717,620.31