Finding the Third Proportional to 138,877 and 297,435.50

Step by Step Solution

1. Step 1: Write the proportion equation
   138,877 : 297,435.50 = 297,435.50 : x
2. Step 2: Convert to fraction form
   138,877/297,435.50 = 297,435.50/x
3. Step 3: Cross multiply
   138,877x = 297,435.50 × 297,435.50
4. Step 4: Simplify right side
   138,877x = 88,467,876,660.25
5. Step 5: Solve for x
   x = 88,467,876,660.25/138,877
6. Step 6: Final answer
   x = 637,023.24