Finding the Third Proportional to 139,112 and 186,364

Step by Step Solution

1. Step 1: Write the proportion equation
   139,112 : 186,364 = 186,364 : x
2. Step 2: Convert to fraction form
   139,112/186,364 = 186,364/x
3. Step 3: Cross multiply
   139,112x = 186,364 × 186,364
4. Step 4: Simplify right side
   139,112x = 34,731,540,496
5. Step 5: Solve for x
   x = 34,731,540,496/139,112
6. Step 6: Final answer
   x = 249,666.03