Finding the Third Proportional to 53,630.44 and 78,782.63

Step by Step Solution

1. Step 1: Write the proportion equation
   53,630.44 : 78,782.63 = 78,782.63 : x
2. Step 2: Convert to fraction form
   53,630.44/78,782.63 = 78,782.63/x
3. Step 3: Cross multiply
   53,630.44x = 78,782.63 × 78,782.63
4. Step 4: Simplify right side
   53,630.44x = 6,206,702,001.89
5. Step 5: Solve for x
   x = 6,206,702,001.89/53,630.44
6. Step 6: Final answer
   x = 115,730.96