Finding the Third Proportional to 283,617 and 423,427.50

Step by Step Solution

1. Step 1: Write the proportion equation
   283,617 : 423,427.50 = 423,427.50 : x
2. Step 2: Convert to fraction form
   283,617/423,427.50 = 423,427.50/x
3. Step 3: Cross multiply
   283,617x = 423,427.50 × 423,427.50
4. Step 4: Simplify right side
   283,617x = 179,290,847,756.25
5. Step 5: Solve for x
   x = 179,290,847,756.25/283,617
6. Step 6: Final answer
   x = 632,158.33