Finding the Third Proportional to 28,710,430 and 63,000,978

Step by Step Solution

1. Step 1: Write the proportion equation
   28,710,430 : 63,000,978 = 63,000,978 : x
2. Step 2: Convert to fraction form
   28,710,430/63,000,978 = 63,000,978/x
3. Step 3: Cross multiply
   28,710,430x = 63,000,978 × 63,000,978
4. Step 4: Simplify right side
   28,710,430x = 3,969,123,228,956,484
5. Step 5: Solve for x
   x = 3,969,123,228,956,484/28,710,430
6. Step 6: Final answer
   x = 138,246,735.73