Finding the Third Proportional to 619,934.34 and 1,343,321.72

Step by Step Solution

1. Step 1: Write the proportion equation
   619,934.34 : 1,343,321.72 = 1,343,321.72 : x
2. Step 2: Convert to fraction form
   619,934.34/1,343,321.72 = 1,343,321.72/x
3. Step 3: Cross multiply
   619,934.34x = 1,343,321.72 × 1,343,321.72
4. Step 4: Simplify right side
   619,934.34x = 1,804,513,240,065.45
5. Step 5: Solve for x
   x = 1,804,513,240,065.45/619,934.34
6. Step 6: Final answer
   x = 2,910,813.47