Finding the Third Proportional to 245,265 and 379,921.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,265 : 379,921.50 = 379,921.50 : x
2. Step 2: Convert to fraction form
   245,265/379,921.50 = 379,921.50/x
3. Step 3: Cross multiply
   245,265x = 379,921.50 × 379,921.50
4. Step 4: Simplify right side
   245,265x = 144,340,346,162.25
5. Step 5: Solve for x
   x = 144,340,346,162.25/245,265
6. Step 6: Final answer
   x = 588,507.72