Finding the Third Proportional to 163,866 and 249,219.50

Step by Step Solution

1. Step 1: Write the proportion equation
   163,866 : 249,219.50 = 249,219.50 : x
2. Step 2: Convert to fraction form
   163,866/249,219.50 = 249,219.50/x
3. Step 3: Cross multiply
   163,866x = 249,219.50 × 249,219.50
4. Step 4: Simplify right side
   163,866x = 62,110,359,180.25
5. Step 5: Solve for x
   x = 62,110,359,180.25/163,866
6. Step 6: Final answer
   x = 379,031.40