Finding the Third Proportional to 346,648.50 and 745,038

Step by Step Solution

1. Step 1: Write the proportion equation
   346,648.50 : 745,038 = 745,038 : x
2. Step 2: Convert to fraction form
   346,648.50/745,038 = 745,038/x
3. Step 3: Cross multiply
   346,648.50x = 745,038 × 745,038
4. Step 4: Simplify right side
   346,648.50x = 555,081,621,444
5. Step 5: Solve for x
   x = 555,081,621,444/346,648.50
6. Step 6: Final answer
   x = 1,601,280.90