Finding the Third Proportional to 78,368.50 and 112,024.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,368.50 : 112,024.50 = 112,024.50 : x
2. Step 2: Convert to fraction form
   78,368.50/112,024.50 = 112,024.50/x
3. Step 3: Cross multiply
   78,368.50x = 112,024.50 × 112,024.50
4. Step 4: Simplify right side
   78,368.50x = 12,549,488,600.25
5. Step 5: Solve for x
   x = 12,549,488,600.25/78,368.50
6. Step 6: Final answer
   x = 160,134.35