Finding the Third Proportional to 580,090.50 and 896,382

Step by Step Solution

1. Step 1: Write the proportion equation
   580,090.50 : 896,382 = 896,382 : x
2. Step 2: Convert to fraction form
   580,090.50/896,382 = 896,382/x
3. Step 3: Cross multiply
   580,090.50x = 896,382 × 896,382
4. Step 4: Simplify right side
   580,090.50x = 803,500,689,924
5. Step 5: Solve for x
   x = 803,500,689,924/580,090.50
6. Step 6: Final answer
   x = 1,385,129.89