Finding the Third Proportional to 623,328 and 1,364,887.50

Step by Step Solution

1. Step 1: Write the proportion equation
   623,328 : 1,364,887.50 = 1,364,887.50 : x
2. Step 2: Convert to fraction form
   623,328/1,364,887.50 = 1,364,887.50/x
3. Step 3: Cross multiply
   623,328x = 1,364,887.50 × 1,364,887.50
4. Step 4: Simplify right side
   623,328x = 1,862,917,887,656.25
5. Step 5: Solve for x
   x = 1,862,917,887,656.25/623,328
6. Step 6: Final answer
   x = 2,988,663.89