Finding the Third Proportional to 116,905.50 and 253,485

Step by Step Solution

1. Step 1: Write the proportion equation
   116,905.50 : 253,485 = 253,485 : x
2. Step 2: Convert to fraction form
   116,905.50/253,485 = 253,485/x
3. Step 3: Cross multiply
   116,905.50x = 253,485 × 253,485
4. Step 4: Simplify right side
   116,905.50x = 64,254,645,225
5. Step 5: Solve for x
   x = 64,254,645,225/116,905.50
6. Step 6: Final answer
   x = 549,628.93