Finding the Third Proportional to 312,046.50 and 468,076.50

Step by Step Solution

1. Step 1: Write the proportion equation
   312,046.50 : 468,076.50 = 468,076.50 : x
2. Step 2: Convert to fraction form
   312,046.50/468,076.50 = 468,076.50/x
3. Step 3: Cross multiply
   312,046.50x = 468,076.50 × 468,076.50
4. Step 4: Simplify right side
   312,046.50x = 219,095,609,852.25
5. Step 5: Solve for x
   x = 219,095,609,852.25/312,046.50
6. Step 6: Final answer
   x = 702,124.88