Finding the Third Proportional to 359,250 and 499,507.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,250 : 499,507.50 = 499,507.50 : x
2. Step 2: Convert to fraction form
   359,250/499,507.50 = 499,507.50/x
3. Step 3: Cross multiply
   359,250x = 499,507.50 × 499,507.50
4. Step 4: Simplify right side
   359,250x = 249,507,742,556.25
5. Step 5: Solve for x
   x = 249,507,742,556.25/359,250
6. Step 6: Final answer
   x = 694,523.99