Finding the Third Proportional to 36,009,139 and 78,848,522

Step by Step Solution

1. Step 1: Write the proportion equation
   36,009,139 : 78,848,522 = 78,848,522 : x
2. Step 2: Convert to fraction form
   36,009,139/78,848,522 = 78,848,522/x
3. Step 3: Cross multiply
   36,009,139x = 78,848,522 × 78,848,522
4. Step 4: Simplify right side
   36,009,139x = 6,217,089,421,584,484
5. Step 5: Solve for x
   x = 6,217,089,421,584,484/36,009,139
6. Step 6: Final answer
   x = 172,653,098.47