Finding the Third Proportional to 607,182 and 891,090

Step by Step Solution

1. Step 1: Write the proportion equation
   607,182 : 891,090 = 891,090 : x
2. Step 2: Convert to fraction form
   607,182/891,090 = 891,090/x
3. Step 3: Cross multiply
   607,182x = 891,090 × 891,090
4. Step 4: Simplify right side
   607,182x = 794,041,388,100
5. Step 5: Solve for x
   x = 794,041,388,100/607,182
6. Step 6: Final answer
   x = 1,307,748.56