Finding the Third Proportional to 49,988.63 and 79,498.88

Step by Step Solution

1. Step 1: Write the proportion equation
   49,988.63 : 79,498.88 = 79,498.88 : x
2. Step 2: Convert to fraction form
   49,988.63/79,498.88 = 79,498.88/x
3. Step 3: Cross multiply
   49,988.63x = 79,498.88 × 79,498.88
4. Step 4: Simplify right side
   49,988.63x = 6,320,071,126.27
5. Step 5: Solve for x
   x = 6,320,071,126.27/49,988.63
6. Step 6: Final answer
   x = 126,430.19