Finding the Third Proportional to 105,810 and 163,903.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,810 : 163,903.50 = 163,903.50 : x
2. Step 2: Convert to fraction form
   105,810/163,903.50 = 163,903.50/x
3. Step 3: Cross multiply
   105,810x = 163,903.50 × 163,903.50
4. Step 4: Simplify right side
   105,810x = 26,864,357,312.25
5. Step 5: Solve for x
   x = 26,864,357,312.25/105,810
6. Step 6: Final answer
   x = 253,892.42