Finding the Third Proportional to 777,142 and 1,672,382

Step by Step Solution

1. Step 1: Write the proportion equation
   777,142 : 1,672,382 = 1,672,382 : x
2. Step 2: Convert to fraction form
   777,142/1,672,382 = 1,672,382/x
3. Step 3: Cross multiply
   777,142x = 1,672,382 × 1,672,382
4. Step 4: Simplify right side
   777,142x = 2,796,861,553,924
5. Step 5: Solve for x
   x = 2,796,861,553,924/777,142
6. Step 6: Final answer
   x = 3,598,906.70