Finding the Third Proportional to 715,188 and 1,080,072

Step by Step Solution

1. Step 1: Write the proportion equation
   715,188 : 1,080,072 = 1,080,072 : x
2. Step 2: Convert to fraction form
   715,188/1,080,072 = 1,080,072/x
3. Step 3: Cross multiply
   715,188x = 1,080,072 × 1,080,072
4. Step 4: Simplify right side
   715,188x = 1,166,555,525,184
5. Step 5: Solve for x
   x = 1,166,555,525,184/715,188
6. Step 6: Final answer
   x = 1,631,117.31