Finding the Third Proportional to 252,303 and 379,507.50

Step by Step Solution

1. Step 1: Write the proportion equation
   252,303 : 379,507.50 = 379,507.50 : x
2. Step 2: Convert to fraction form
   252,303/379,507.50 = 379,507.50/x
3. Step 3: Cross multiply
   252,303x = 379,507.50 × 379,507.50
4. Step 4: Simplify right side
   252,303x = 144,025,942,556.25
5. Step 5: Solve for x
   x = 144,025,942,556.25/252,303
6. Step 6: Final answer
   x = 570,845.14