Finding the Third Proportional to 78,487 and 112,090

Step by Step Solution

1. Step 1: Write the proportion equation
   78,487 : 112,090 = 112,090 : x
2. Step 2: Convert to fraction form
   78,487/112,090 = 112,090/x
3. Step 3: Cross multiply
   78,487x = 112,090 × 112,090
4. Step 4: Simplify right side
   78,487x = 12,564,168,100
5. Step 5: Solve for x
   x = 12,564,168,100/78,487
6. Step 6: Final answer
   x = 160,079.61