Finding the Third Proportional to 138,801 and 301,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   138,801 : 301,385.50 = 301,385.50 : x
2. Step 2: Convert to fraction form
   138,801/301,385.50 = 301,385.50/x
3. Step 3: Cross multiply
   138,801x = 301,385.50 × 301,385.50
4. Step 4: Simplify right side
   138,801x = 90,833,219,610.25
5. Step 5: Solve for x
   x = 90,833,219,610.25/138,801
6. Step 6: Final answer
   x = 654,413.29