Finding the Third Proportional to 38,402,442 and 83,978,172

Step by Step Solution

1. Step 1: Write the proportion equation
   38,402,442 : 83,978,172 = 83,978,172 : x
2. Step 2: Convert to fraction form
   38,402,442/83,978,172 = 83,978,172/x
3. Step 3: Cross multiply
   38,402,442x = 83,978,172 × 83,978,172
4. Step 4: Simplify right side
   38,402,442x = 7,052,333,372,461,584
5. Step 5: Solve for x
   x = 7,052,333,372,461,584/38,402,442
6. Step 6: Final answer
   x = 183,642,836.37