Finding the Third Proportional to 42,791.63 and 66,031.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,791.63 : 66,031.88 = 66,031.88 : x
2. Step 2: Convert to fraction form
   42,791.63/66,031.88 = 66,031.88/x
3. Step 3: Cross multiply
   42,791.63x = 66,031.88 × 66,031.88
4. Step 4: Simplify right side
   42,791.63x = 4,360,208,516.02
5. Step 5: Solve for x
   x = 4,360,208,516.02/42,791.63
6. Step 6: Final answer
   x = 101,893.97