Finding the Third Proportional to 36,406,584 and 78,216,012

Step by Step Solution

1. Step 1: Write the proportion equation
   36,406,584 : 78,216,012 = 78,216,012 : x
2. Step 2: Convert to fraction form
   36,406,584/78,216,012 = 78,216,012/x
3. Step 3: Cross multiply
   36,406,584x = 78,216,012 × 78,216,012
4. Step 4: Simplify right side
   36,406,584x = 6,117,744,533,184,144
5. Step 5: Solve for x
   x = 6,117,744,533,184,144/36,406,584
6. Step 6: Final answer
   x = 168,039,509.92