Finding the Third Proportional to 138,463 and 300,254

Step by Step Solution

1. Step 1: Write the proportion equation
   138,463 : 300,254 = 300,254 : x
2. Step 2: Convert to fraction form
   138,463/300,254 = 300,254/x
3. Step 3: Cross multiply
   138,463x = 300,254 × 300,254
4. Step 4: Simplify right side
   138,463x = 90,152,464,516
5. Step 5: Solve for x
   x = 90,152,464,516/138,463
6. Step 6: Final answer
   x = 651,094.26