Finding the Third Proportional to 778,897.69 and 1,179,088.31

Step by Step Solution

1. Step 1: Write the proportion equation
   778,897.69 : 1,179,088.31 = 1,179,088.31 : x
2. Step 2: Convert to fraction form
   778,897.69/1,179,088.31 = 1,179,088.31/x
3. Step 3: Cross multiply
   778,897.69x = 1,179,088.31 × 1,179,088.31
4. Step 4: Simplify right side
   778,897.69x = 1,390,249,248,674.10
5. Step 5: Solve for x
   x = 1,390,249,248,674.10/778,897.69
6. Step 6: Final answer
   x = 1,784,893.28