Finding the Third Proportional to 433,053 and 680,278.50

Step by Step Solution

1. Step 1: Write the proportion equation
   433,053 : 680,278.50 = 680,278.50 : x
2. Step 2: Convert to fraction form
   433,053/680,278.50 = 680,278.50/x
3. Step 3: Cross multiply
   433,053x = 680,278.50 × 680,278.50
4. Step 4: Simplify right side
   433,053x = 462,778,837,562.25
5. Step 5: Solve for x
   x = 462,778,837,562.25/433,053
6. Step 6: Final answer
   x = 1,068,642.49