Finding the Third Proportional to 580,816.50 and 1,258,146

Step by Step Solution

1. Step 1: Write the proportion equation
   580,816.50 : 1,258,146 = 1,258,146 : x
2. Step 2: Convert to fraction form
   580,816.50/1,258,146 = 1,258,146/x
3. Step 3: Cross multiply
   580,816.50x = 1,258,146 × 1,258,146
4. Step 4: Simplify right side
   580,816.50x = 1,582,931,357,316
5. Step 5: Solve for x
   x = 1,582,931,357,316/580,816.50
6. Step 6: Final answer
   x = 2,725,355.35