Finding the Third Proportional to 448,515 and 695,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   448,515 : 695,191.50 = 695,191.50 : x
2. Step 2: Convert to fraction form
   448,515/695,191.50 = 695,191.50/x
3. Step 3: Cross multiply
   448,515x = 695,191.50 × 695,191.50
4. Step 4: Simplify right side
   448,515x = 483,291,221,672.25
5. Step 5: Solve for x
   x = 483,291,221,672.25/448,515
6. Step 6: Final answer
   x = 1,077,536.36