Finding the Third Proportional to 63,558 and 138,181.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,558 : 138,181.50 = 138,181.50 : x
2. Step 2: Convert to fraction form
   63,558/138,181.50 = 138,181.50/x
3. Step 3: Cross multiply
   63,558x = 138,181.50 × 138,181.50
4. Step 4: Simplify right side
   63,558x = 19,094,126,942.25
5. Step 5: Solve for x
   x = 19,094,126,942.25/63,558
6. Step 6: Final answer
   x = 300,420.51