Finding the Third Proportional to 137,065.50 and 207,056.25

Step by Step Solution

1. Step 1: Write the proportion equation
   137,065.50 : 207,056.25 = 207,056.25 : x
2. Step 2: Convert to fraction form
   137,065.50/207,056.25 = 207,056.25/x
3. Step 3: Cross multiply
   137,065.50x = 207,056.25 × 207,056.25
4. Step 4: Simplify right side
   137,065.50x = 42,872,290,664.06
5. Step 5: Solve for x
   x = 42,872,290,664.06/137,065.50
6. Step 6: Final answer
   x = 312,786.88