Finding the Third Proportional to 139,360.50 and 314,826.75

Step by Step Solution

1. Step 1: Write the proportion equation
   139,360.50 : 314,826.75 = 314,826.75 : x
2. Step 2: Convert to fraction form
   139,360.50/314,826.75 = 314,826.75/x
3. Step 3: Cross multiply
   139,360.50x = 314,826.75 × 314,826.75
4. Step 4: Simplify right side
   139,360.50x = 99,115,882,515.56
5. Step 5: Solve for x
   x = 99,115,882,515.56/139,360.50
6. Step 6: Final answer
   x = 711,219.34