Finding the Third Proportional to 130,003 and 279,410

Step by Step Solution

1. Step 1: Write the proportion equation
   130,003 : 279,410 = 279,410 : x
2. Step 2: Convert to fraction form
   130,003/279,410 = 279,410/x
3. Step 3: Cross multiply
   130,003x = 279,410 × 279,410
4. Step 4: Simplify right side
   130,003x = 78,069,948,100
5. Step 5: Solve for x
   x = 78,069,948,100/130,003
6. Step 6: Final answer
   x = 600,524.20