Finding the Third Proportional to 207,292.50 and 453,222

Step by Step Solution

1. Step 1: Write the proportion equation
   207,292.50 : 453,222 = 453,222 : x
2. Step 2: Convert to fraction form
   207,292.50/453,222 = 453,222/x
3. Step 3: Cross multiply
   207,292.50x = 453,222 × 453,222
4. Step 4: Simplify right side
   207,292.50x = 205,410,181,284
5. Step 5: Solve for x
   x = 205,410,181,284/207,292.50
6. Step 6: Final answer
   x = 990,919.50