Finding the Third Proportional to 137,116 and 207,132

Step by Step Solution

1. Step 1: Write the proportion equation
   137,116 : 207,132 = 207,132 : x
2. Step 2: Convert to fraction form
   137,116/207,132 = 207,132/x
3. Step 3: Cross multiply
   137,116x = 207,132 × 207,132
4. Step 4: Simplify right side
   137,116x = 42,903,665,424
5. Step 5: Solve for x
   x = 42,903,665,424/137,116
6. Step 6: Final answer
   x = 312,900.50