Finding the Third Proportional to 3,172,872 and 4,766,342

Step by Step Solution

1. Step 1: Write the proportion equation
   3,172,872 : 4,766,342 = 4,766,342 : x
2. Step 2: Convert to fraction form
   3,172,872/4,766,342 = 4,766,342/x
3. Step 3: Cross multiply
   3,172,872x = 4,766,342 × 4,766,342
4. Step 4: Simplify right side
   3,172,872x = 22,718,016,060,964
5. Step 5: Solve for x
   x = 22,718,016,060,964/3,172,872
6. Step 6: Final answer
   x = 7,160,079.59