Finding the Third Proportional to 81,426 and 112,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,426 : 112,054.50 = 112,054.50 : x
2. Step 2: Convert to fraction form
   81,426/112,054.50 = 112,054.50/x
3. Step 3: Cross multiply
   81,426x = 112,054.50 × 112,054.50
4. Step 4: Simplify right side
   81,426x = 12,556,210,970.25
5. Step 5: Solve for x
   x = 12,556,210,970.25/81,426
6. Step 6: Final answer
   x = 154,203.95