Finding the Third Proportional to 139,117.50 and 188,973

Step by Step Solution

1. Step 1: Write the proportion equation
   139,117.50 : 188,973 = 188,973 : x
2. Step 2: Convert to fraction form
   139,117.50/188,973 = 188,973/x
3. Step 3: Cross multiply
   139,117.50x = 188,973 × 188,973
4. Step 4: Simplify right side
   139,117.50x = 35,710,794,729
5. Step 5: Solve for x
   x = 35,710,794,729/139,117.50
6. Step 6: Final answer
   x = 256,695.20