Finding the Third Proportional to 308,437.50 and 713,988

Step by Step Solution

1. Step 1: Write the proportion equation
   308,437.50 : 713,988 = 713,988 : x
2. Step 2: Convert to fraction form
   308,437.50/713,988 = 713,988/x
3. Step 3: Cross multiply
   308,437.50x = 713,988 × 713,988
4. Step 4: Simplify right side
   308,437.50x = 509,778,864,144
5. Step 5: Solve for x
   x = 509,778,864,144/308,437.50
6. Step 6: Final answer
   x = 1,652,778.49