Finding the Third Proportional to 138,063 and 297,874.50

Step by Step Solution

1. Step 1: Write the proportion equation
   138,063 : 297,874.50 = 297,874.50 : x
2. Step 2: Convert to fraction form
   138,063/297,874.50 = 297,874.50/x
3. Step 3: Cross multiply
   138,063x = 297,874.50 × 297,874.50
4. Step 4: Simplify right side
   138,063x = 88,729,217,750.25
5. Step 5: Solve for x
   x = 88,729,217,750.25/138,063
6. Step 6: Final answer
   x = 642,671.95