Finding the Third Proportional to 78,219 and 112,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,219 : 112,090.50 = 112,090.50 : x
2. Step 2: Convert to fraction form
   78,219/112,090.50 = 112,090.50/x
3. Step 3: Cross multiply
   78,219x = 112,090.50 × 112,090.50
4. Step 4: Simplify right side
   78,219x = 12,564,280,190.25
5. Step 5: Solve for x
   x = 12,564,280,190.25/78,219
6. Step 6: Final answer
   x = 160,629.52