Finding the Third Proportional to 291,067.88 and 626,398.50

Step by Step Solution

1. Step 1: Write the proportion equation
   291,067.88 : 626,398.50 = 626,398.50 : x
2. Step 2: Convert to fraction form
   291,067.88/626,398.50 = 626,398.50/x
3. Step 3: Cross multiply
   291,067.88x = 626,398.50 × 626,398.50
4. Step 4: Simplify right side
   291,067.88x = 392,375,080,802.25
5. Step 5: Solve for x
   x = 392,375,080,802.25/291,067.88
6. Step 6: Final answer
   x = 1,348,053.55