Finding the Third Proportional to 577,406.50 and 907,042

Step by Step Solution

1. Step 1: Write the proportion equation
   577,406.50 : 907,042 = 907,042 : x
2. Step 2: Convert to fraction form
   577,406.50/907,042 = 907,042/x
3. Step 3: Cross multiply
   577,406.50x = 907,042 × 907,042
4. Step 4: Simplify right side
   577,406.50x = 822,725,189,764
5. Step 5: Solve for x
   x = 822,725,189,764/577,406.50
6. Step 6: Final answer
   x = 1,424,863.06