Finding the Third Proportional to 699,807 and 1,049,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   699,807 : 1,049,528.50 = 1,049,528.50 : x
2. Step 2: Convert to fraction form
   699,807/1,049,528.50 = 1,049,528.50/x
3. Step 3: Cross multiply
   699,807x = 1,049,528.50 × 1,049,528.50
4. Step 4: Simplify right side
   699,807x = 1,101,510,072,312.25
5. Step 5: Solve for x
   x = 1,101,510,072,312.25/699,807
6. Step 6: Final answer
   x = 1,574,019.80