Finding the Third Proportional to 137,114.50 and 207,130

Step by Step Solution

1. Step 1: Write the proportion equation
   137,114.50 : 207,130 = 207,130 : x
2. Step 2: Convert to fraction form
   137,114.50/207,130 = 207,130/x
3. Step 3: Cross multiply
   137,114.50x = 207,130 × 207,130
4. Step 4: Simplify right side
   137,114.50x = 42,902,836,900
5. Step 5: Solve for x
   x = 42,902,836,900/137,114.50
6. Step 6: Final answer
   x = 312,897.88