Finding the Third Proportional to 64,931,427 and 142,848,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,931,427 : 142,848,985.50 = 142,848,985.50 : x
2. Step 2: Convert to fraction form
   64,931,427/142,848,985.50 = 142,848,985.50/x
3. Step 3: Cross multiply
   64,931,427x = 142,848,985.50 × 142,848,985.50
4. Step 4: Simplify right side
   64,931,427x = 20,405,832,658,379,212
5. Step 5: Solve for x
   x = 20,405,832,658,379,212/64,931,427
6. Step 6: Final answer
   x = 314,267,429.52