Finding the Third Proportional to 139,485 and 202,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,485 : 202,747.50 = 202,747.50 : x
2. Step 2: Convert to fraction form
   139,485/202,747.50 = 202,747.50/x
3. Step 3: Cross multiply
   139,485x = 202,747.50 × 202,747.50
4. Step 4: Simplify right side
   139,485x = 41,106,548,756.25
5. Step 5: Solve for x
   x = 41,106,548,756.25/139,485
6. Step 6: Final answer
   x = 294,702.29