Finding the Third Proportional to 36,406,588 and 78,216,020

Step by Step Solution

1. Step 1: Write the proportion equation
   36,406,588 : 78,216,020 = 78,216,020 : x
2. Step 2: Convert to fraction form
   36,406,588/78,216,020 = 78,216,020/x
3. Step 3: Cross multiply
   36,406,588x = 78,216,020 × 78,216,020
4. Step 4: Simplify right side
   36,406,588x = 6,117,745,784,640,400
5. Step 5: Solve for x
   x = 6,117,745,784,640,400/36,406,588
6. Step 6: Final answer
   x = 168,039,525.83