Finding the Third Proportional to 653,799 and 999,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   653,799 : 999,724.50 = 999,724.50 : x
2. Step 2: Convert to fraction form
   653,799/999,724.50 = 999,724.50/x
3. Step 3: Cross multiply
   653,799x = 999,724.50 × 999,724.50
4. Step 4: Simplify right side
   653,799x = 999,449,075,900.25
5. Step 5: Solve for x
   x = 999,449,075,900.25/653,799
6. Step 6: Final answer
   x = 1,528,679.42