Finding the Third Proportional to 139,746.38 and 197,550

Step by Step Solution

1. Step 1: Write the proportion equation
   139,746.38 : 197,550 = 197,550 : x
2. Step 2: Convert to fraction form
   139,746.38/197,550 = 197,550/x
3. Step 3: Cross multiply
   139,746.38x = 197,550 × 197,550
4. Step 4: Simplify right side
   139,746.38x = 39,026,002,500
5. Step 5: Solve for x
   x = 39,026,002,500/139,746.38
6. Step 6: Final answer
   x = 279,263.08