Finding the Third Proportional to 122,298 and 265,549.50

Step by Step Solution

1. Step 1: Write the proportion equation
   122,298 : 265,549.50 = 265,549.50 : x
2. Step 2: Convert to fraction form
   122,298/265,549.50 = 265,549.50/x
3. Step 3: Cross multiply
   122,298x = 265,549.50 × 265,549.50
4. Step 4: Simplify right side
   122,298x = 70,516,536,950.25
5. Step 5: Solve for x
   x = 70,516,536,950.25/122,298
6. Step 6: Final answer
   x = 576,595.99