Finding the Third Proportional to 231,312.50 and 535,456

Step by Step Solution

1. Step 1: Write the proportion equation
   231,312.50 : 535,456 = 535,456 : x
2. Step 2: Convert to fraction form
   231,312.50/535,456 = 535,456/x
3. Step 3: Cross multiply
   231,312.50x = 535,456 × 535,456
4. Step 4: Simplify right side
   231,312.50x = 286,713,127,936
5. Step 5: Solve for x
   x = 286,713,127,936/231,312.50
6. Step 6: Final answer
   x = 1,239,505.55