Finding the Third Proportional to 607,642 and 1,308,776

Step by Step Solution

1. Step 1: Write the proportion equation
   607,642 : 1,308,776 = 1,308,776 : x
2. Step 2: Convert to fraction form
   607,642/1,308,776 = 1,308,776/x
3. Step 3: Cross multiply
   607,642x = 1,308,776 × 1,308,776
4. Step 4: Simplify right side
   607,642x = 1,712,894,618,176
5. Step 5: Solve for x
   x = 1,712,894,618,176/607,642
6. Step 6: Final answer
   x = 2,818,920.71