Finding the Third Proportional to 699,090 and 1,046,139

Step by Step Solution

1. Step 1: Write the proportion equation
   699,090 : 1,046,139 = 1,046,139 : x
2. Step 2: Convert to fraction form
   699,090/1,046,139 = 1,046,139/x
3. Step 3: Cross multiply
   699,090x = 1,046,139 × 1,046,139
4. Step 4: Simplify right side
   699,090x = 1,094,406,807,321
5. Step 5: Solve for x
   x = 1,094,406,807,321/699,090
6. Step 6: Final answer
   x = 1,565,473.41