Finding the Third Proportional to 346,300.50 and 748,422

Step by Step Solution

1. Step 1: Write the proportion equation
   346,300.50 : 748,422 = 748,422 : x
2. Step 2: Convert to fraction form
   346,300.50/748,422 = 748,422/x
3. Step 3: Cross multiply
   346,300.50x = 748,422 × 748,422
4. Step 4: Simplify right side
   346,300.50x = 560,135,490,084
5. Step 5: Solve for x
   x = 560,135,490,084/346,300.50
6. Step 6: Final answer
   x = 1,617,483.92