Finding the Third Proportional to 45,242.63 and 70,449.38

Step by Step Solution

1. Step 1: Write the proportion equation
   45,242.63 : 70,449.38 = 70,449.38 : x
2. Step 2: Convert to fraction form
   45,242.63/70,449.38 = 70,449.38/x
3. Step 3: Cross multiply
   45,242.63x = 70,449.38 × 70,449.38
4. Step 4: Simplify right side
   45,242.63x = 4,963,114,437.89
5. Step 5: Solve for x
   x = 4,963,114,437.89/45,242.63
6. Step 6: Final answer
   x = 109,699.97