Finding the Third Proportional to 340,699.50 and 529,038

Step by Step Solution

1. Step 1: Write the proportion equation
   340,699.50 : 529,038 = 529,038 : x
2. Step 2: Convert to fraction form
   340,699.50/529,038 = 529,038/x
3. Step 3: Cross multiply
   340,699.50x = 529,038 × 529,038
4. Step 4: Simplify right side
   340,699.50x = 279,881,205,444
5. Step 5: Solve for x
   x = 279,881,205,444/340,699.50
6. Step 6: Final answer
   x = 821,489.92