Finding the Third Proportional to 453,500 and 707,820

Step by Step Solution

1. Step 1: Write the proportion equation
   453,500 : 707,820 = 707,820 : x
2. Step 2: Convert to fraction form
   453,500/707,820 = 707,820/x
3. Step 3: Cross multiply
   453,500x = 707,820 × 707,820
4. Step 4: Simplify right side
   453,500x = 501,009,152,400
5. Step 5: Solve for x
   x = 501,009,152,400/453,500
6. Step 6: Final answer
   x = 1,104,761.09