Finding the Third Proportional to 5,406,420 and 7,558,506

Step by Step Solution

1. Step 1: Write the proportion equation
   5,406,420 : 7,558,506 = 7,558,506 : x
2. Step 2: Convert to fraction form
   5,406,420/7,558,506 = 7,558,506/x
3. Step 3: Cross multiply
   5,406,420x = 7,558,506 × 7,558,506
4. Step 4: Simplify right side
   5,406,420x = 57,131,012,952,036
5. Step 5: Solve for x
   x = 57,131,012,952,036/5,406,420
6. Step 6: Final answer
   x = 10,567,253.92