Finding the Third Proportional to 445,039.31 and 921,592.69

Step by Step Solution

1. Step 1: Write the proportion equation
   445,039.31 : 921,592.69 = 921,592.69 : x
2. Step 2: Convert to fraction form
   445,039.31/921,592.69 = 921,592.69/x
3. Step 3: Cross multiply
   445,039.31x = 921,592.69 × 921,592.69
4. Step 4: Simplify right side
   445,039.31x = 849,333,081,653.47
5. Step 5: Solve for x
   x = 849,333,081,653.47/445,039.31
6. Step 6: Final answer
   x = 1,908,445.07