Finding the Third Proportional to 135,903 and 276,316.50

Step by Step Solution

1. Step 1: Write the proportion equation
   135,903 : 276,316.50 = 276,316.50 : x
2. Step 2: Convert to fraction form
   135,903/276,316.50 = 276,316.50/x
3. Step 3: Cross multiply
   135,903x = 276,316.50 × 276,316.50
4. Step 4: Simplify right side
   135,903x = 76,350,808,172.25
5. Step 5: Solve for x
   x = 76,350,808,172.25/135,903
6. Step 6: Final answer
   x = 561,803.70