Finding the Third Proportional to 163,485 and 249,465.38

Step by Step Solution

1. Step 1: Write the proportion equation
   163,485 : 249,465.38 = 249,465.38 : x
2. Step 2: Convert to fraction form
   163,485/249,465.38 = 249,465.38/x
3. Step 3: Cross multiply
   163,485x = 249,465.38 × 249,465.38
4. Step 4: Simplify right side
   163,485x = 62,232,973,323.89
5. Step 5: Solve for x
   x = 62,232,973,323.89/163,485
6. Step 6: Final answer
   x = 380,664.73