Finding the Third Proportional to 187,722 and 390,975.75

Step by Step Solution

1. Step 1: Write the proportion equation
   187,722 : 390,975.75 = 390,975.75 : x
2. Step 2: Convert to fraction form
   187,722/390,975.75 = 390,975.75/x
3. Step 3: Cross multiply
   187,722x = 390,975.75 × 390,975.75
4. Step 4: Simplify right side
   187,722x = 152,862,037,088.06
5. Step 5: Solve for x
   x = 152,862,037,088.06/187,722
6. Step 6: Final answer
   x = 814,300.07