Finding the Third Proportional to 163,155 and 250,852.50

Step by Step Solution

1. Step 1: Write the proportion equation
   163,155 : 250,852.50 = 250,852.50 : x
2. Step 2: Convert to fraction form
   163,155/250,852.50 = 250,852.50/x
3. Step 3: Cross multiply
   163,155x = 250,852.50 × 250,852.50
4. Step 4: Simplify right side
   163,155x = 62,926,976,756.25
5. Step 5: Solve for x
   x = 62,926,976,756.25/163,155
6. Step 6: Final answer
   x = 385,688.31