Finding the Third Proportional to 458,130 and 699,044.63

Step by Step Solution

1. Step 1: Write the proportion equation
   458,130 : 699,044.63 = 699,044.63 : x
2. Step 2: Convert to fraction form
   458,130/699,044.63 = 699,044.63/x
3. Step 3: Cross multiply
   458,130x = 699,044.63 × 699,044.63
4. Step 4: Simplify right side
   458,130x = 488,663,387,741.39
5. Step 5: Solve for x
   x = 488,663,387,741.39/458,130
6. Step 6: Final answer
   x = 1,066,647.87